AGPS Harvard referencing is a referencing style developed by Griffith University. To reference a book in this style you need to follow the below steps:
Reference:
Last name of the author, initial(s) Year, Title: subtitle, name of publisher, place of publication.
Barley, K 1998, Working as an efficient technician, World Reading, West Australia.
In-text citation:
(Author year)
(Barley 1998)