I am using Elsevier Harvard with tittles. I, however, find that when I insert bibliography the position of the publisher comes first before the city. How can I correct that?
There are several alternatives to harvard style. For example, in Imperial College London -harvard, the city comes before the publisher. You can download this style from zotero.org.
Sambrook, J. & Russell, D.W. (2001) Molecular cloning: a laboratory manual. 3rd edition. Cold Spring Harbor, NY, CSHL Press.
To further elaborate on "Harvard style", there is no one such style. Elsevier, as a publisher, adapted such a style for their journals. elsevier-harvard.csl is doing exactly what Elsevier wants for it's publishers. See: https://www.zotero.org/support/kb/harvard_style
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Correct output:
Sambrook, J., Russell, D.W., 2001. Molecular cloning: a laboratory manual, 3rd ed. CSHL Press, Cold Spring Harbor, NY.
What makes you think that it's wrong?
For example, in Imperial College London -harvard, the city comes before the publisher.
You can download this style from zotero.org.
Sambrook, J. & Russell, D.W. (2001) Molecular cloning: a laboratory manual. 3rd edition. Cold Spring Harbor, NY, CSHL Press.
See: https://www.zotero.org/support/kb/harvard_style
You can find more Harvard styles on the repository as DelarcheEmma pointed out: https://www.zotero.org/styles?q=harvard&dependent=0