Biblioscape - bibliography software for researchers to generate citations and a bibliography in APA, MLA, etc. - The best reference manager for Windows.
Intext referencing (Harvard author/date) - Research Toolkit - LibGuides at Renmark High School
Free Harvard Citation Generator for Referencing - Edubirdie
Free Harvard Citation Generator for Referencing - Edubirdie
Reference List (Harvard) - Academic English Referencing System