The Harvard style of referencing requires you to include the name of the author/s and the year of publication within the text. If you have used a direct quotation, you also need to include the page number/s. If you are summarising a large section of the book, you do not need to include page numbers.

References should be, whenever possible, placed at the end of a sentence (before the concluding punctuation). For example:

Alternatively, the author's surname may be integrated into the text, followed immediately by the year of publication in brackets. For example:

If you reference a work written by 2 or 3 authors, all names should be included. For example:

If there are four or more authors, write the first author's name followed by et al. For example:

If there is more than one reference by an author in the same year they are generally labelled in order of publication with a lower case letter. For example:

If the author's name is unknown you should give the title of the article, book or webpage. For example:

You may want to refer to a work that you haven't actually read but which has been summarised or discussed in somebody else's work. For example:

In the list of references at the end of your work only include the reference where you read about the original work. You cannot include details about the original study as you have not read it.