Let’s do this:
http://www.businessandeconomics.mq.edu.au/our_departments/accounting_and_corporate_governance/Accg_docs/pdf/postgraduate_coursework/Harvard_Referencing_System.pdf
https://www.slideshare.net/chincelery/harward-referencing-guidance-2009
https://library.aru.ac.uk/referencing/harvard.htm
https://www.yumpu.com/en/document/view/20617736/harvard-referencing-flinders-university
http://docplayer.net/12950510-How-to-do-your-referencing-using-the-harvard-system.html

I just use this tool, whenever I’m stuck with the retarded rules of any of the citation styles:

Link: http://www.citethisforme.com/

I would recommend this one:
Link: http://web.archive.org/web/20151106035804/http://www.dcu.ie/library/LibraryGuides/Citing&RefGuide12.pdf