For a detailed guide to Harvard Referencing, please read the link below.
Be sure to follow the exact template for each type of reference (book, book chapter, journal article, website, etc.).
References are presented as a mixture of books, journal articles, chapters and online resources that are listed in alphabetical order. There is no need to separate references under different headings (for example a heading for books, a heading for websites, a heading for journal articles).
Complete the reference list as you write your essay or report, so that you can be sure each reference is correctly presented.