Correctly formatted request:

J. L. Campbell and O. K. Pedersen, Comp. Polit. Stud., 2007, 40, 307-332.

I. Mares, in Firms and the welfare state: When, why, and how does social policy matter to employers?, ed. P. A. Hall and D. Soskice, Oxford University Press, New York, 2001, pp. 184-213.

comments: I'm not sure if the title of the book vs the title of the chapter is the other way round as it's not that clear on the journal specific guideline if it's a book's / chapter's title.

Example format from journal specific guideline:

Journals
The style of journal abbreviations to be used in RSC publications is that defined in Chemical Abstracts Service Source Index (CASSI) (http://www.cas.org/expertise/cascontent/caplus/corejournals.html).

Bibliographic details should be cited in the order: year, volume, page.

Where page numbers are not yet known, articles should be cited by DOI (Digital Object Identifier) - for example, T. J. Hebden, R. R. Schrock, M. K. Takase and P. Müller, Chem. Commun., 2012, DOI: 10.1039/C2CC17634C.

Books
J. Barker, in Catalyst Deactivation, ed. B. Delmon and C. Froment, Elsevier, Amsterdam, 2nd edn., 1987, vol. 1, ch. 4, pp. 253-255.

Patents
Br. Pat., 357 450, 1986. US Pat., 1 171 230, 1990.

Reports and bulletins, etc
R. A. Allen, D. B. Smith and J. E. Hiscott, Radioisotope Data, UKAEA Research Group Report AERE-R 2938, H.M.S.O., London, 1961.

Material presented at meetings
H. C. Freeman, Proceedings of the 21st International Conference on Coordination Chemistry, Toulouse, 1980.

Theses
A. D. Mount, Ph.D. Thesis, University of London, 1977.

Software
F James, AIM2000, version 1.0, University of Applied Sciences, Bielefeld, Germany, 2000.
T Bellander, M Lewne and B Brunekreef, GAUSSIAN 3 (Revision B.05), Gaussian Inc., Pittsburgh, PA, 2003.

Online resources (including databases): Please note the most important information to include is the URL and the data accessed.
ChemSpider, http://www.chemspider.com/Chemicai-Structure.1906.html, (accessed June 2011).

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ISSN:
2053-1419 (Electronic)
2053-1400 (Print)
2053-1400 (Linking)

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Journal specific website: http://www.rsc.org/journals-books-databases/about-journals/environmental-science-water-research-technology/?id=8338#journal-specific-guidelines

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Example papers (free access):
http://pubs.rsc.org/en/content/articlepdf/2016/ew/c6ew00057f
http://pubs.rsc.org/en/content/articlepdf/2016/ew/c6ew00127k

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Thanks a lot!