I guess the editors modelled it on Harvard and APA.
Differences with APA:
in text citations are ordered chronologically.

reference list:
books:
- authors first name doesn't have "." after the abbreviated first letters. So it is Blunt, P and Blabla, A
- multiple authors uses "and" instead od "&"
- date: no "." after the date so it is: Blunt, P and Blabla, A (1999) title
- title is not italicised and is seperated from location by a comma ","
- title words are capitalised eg "Managing Organizations in Africa"

Journal articles:
title of the article is seperated from journal name by a comma ","
journal name is not italicised
volume number is not italicised
journal page numbers are kept short, dropping the hundreds: so 579-99

Chapters in books:
-author's first name is abrreviated without a "." eg: Schwartz, S (1999)
- multiple authors have "and" instead of "&"
- title of chapter is seperated from next part by a comma ","
- chapter title "in" book instead of apa style "In" book
- only first author of the edited book is mentioned
- "et al" instead of apa "et al."
- title words are capitalised eg "Managing Organizations in Africa"

Conference and other papers
- date: no "." after the date so it is: Blunt, P and Blabla, A (1999) title
- title of paper is not italicised
- title of paper is seperated from conference by a comma "," eg Achievement motive of Brazilian, Israeli and USA Managers, paper presented at 7th bi-annual
- "paper" is not capitalised like in APA.
conference name ends with "(month)", eg title of paper, paper presented at conference (June)
- month is seperated from location by a comma, eg (June), Jerusalem
- internet sources: first organisation followed by (date), then a comma "," followed by the title
web title is capitalised eg South African Defence: In Transition
title is followed by a comma "," then exact complete webadress
access date is seperated from website by comma "," eg: www.cdiss.org/safrica1.htm, 6 October 1999
access date is in format day month year, eg 6 October 1999
access date is seperated from pages by a comma eg: 6 October 1999, pp.1-3

These are the examples given by the editors:
References are represented in the text by author and date [e.g. '………as Kedia & Bhagat (1988) has indicated….'; '…current research (Schwartz, 1994; Elizur & Tchaikovsky, 2000) has shown..']. Sources from websites should be shown as follows:… (CDISS, 1999) .. References are collated into an alphabetical and date-order list at the end of the text in the following style.

Journal articles: Kedia, B. L. and Bhagat, R. S. (1988) Cultural constraints on transfer of technology across nations: implications for research in international and comparative management, Academy of Management Review, 13(4), 559-71.

Books: Blunt, P and Jones, M L (1992) Managing Organizations in Africa, Berlin: Walter de Gruyter.

Chapters in books: Schwartz, S (1994) Beyond individualismllectivism: new cultural dimensions of values, in Kim, et al, Individualism and Collectivism: Theory, Method and Application, Beverly Hills, CA: Sage, pp. 85-119.

Conference and other papers: Elizur, D. & Tchaikovsky, F. M. (2000) Achievement motive of Brazilian, Israeli and USA Managers, paper presented at 7th bi-annual conference of ISSWOV (June), Jerusalem.

World Wide Web sources (showing precise page location and date accessed): CDISS (Centre for Defence and International Security Studies, Lancaster University) (1999), South African Defence: In Transition, www.cdiss.org/safrica1.htm, 6 October 1999, pp.1-3.

Sage webpage: http://www.sagepub.com/journalsProdManSub.nav?prodId=Journal201498