Harvard is an Author-Date style that uses in-text citations and an alphabetically-ordered reference list. The Harvard Style is widely used, but with numerous variations. Consistency is important; choose one version of Harvard and make sure that you are consistent in your own application of it.
If you are unsure of which version of the Harvard Citation Style to use consult your tutor, lecturer or department.
Two versions of the Harvard Citation Style recommended by the Library are the styles developed by The University of Limerick and the Imperial College of London.
There is no Harvard manual but the ebook above (also available in print) has a chapter on Harvard with examples.
Available at Robertson Library Books 808.027 PEA 20
Also consult Cite them right: the essential referencing guide for extensive examples of Harvard, plus APA, Chicago, Vancouver and more.
Endnote comes with over 5000 different output styles including several versions of Harvard. Depending on how Endnote has been installed on your computer, you may not have all versions immediately available. However they can be easily added.
EndnoteTraining provides a video tutorial for both PC and MAC users on how to add additional styles, either in bulk or one at a time.