Harvard style is a form of referencing that doesn't use footnotes or endnotes. Instead, you use what are called 'in-text' references.

When you are writing an essay, you must reference the author who actually wrote the point, extract, phrase or idea you are using. Failure to attribute or reference an idea or a quotation to its author can be construed as plagiarism, ie. the misrepresentation of another person's work as your own. The mandatory assessment for plagiarism is failure.

How do you use Harvard style?

In-text references state the author, the date of the text's publication and the page number. For example:

(Curran & Gurevitch 1991: 230)

is the Harvard style for referring to page number 230 in the text listed in the bibliography as:

Curran, J. & Gurevitch, M. (eds) 1991. Mass Media and Society. London, Edward Arnold.

If you wish to make reference to one of the authors found within the Curran and Gurevitch text, you do not also refer to the editors of the collection (ie. Curran and Gurevich). You would make reference to the author of the chapter you are using in the following way:

(Sreberny-Mohammadi 1991: 130)

In the bibliography, however, you must include the following reference:

Sreberny-Mohammadi, A. 1991. 'The global and the local in international communications'. In Curran, J. & Gurevitch, M. (eds) 1991. Mass Media and Society. London, Edward Arnold, pp. 118 - 138.

If you wish to make reference to an author who is referred to in a text, but you have not read the original text by that author yourself, then you do so in the following way:

(Appadurai in Sreberny-Mohammadi 1991: 119)

But you do not cite 'Appadurai' in the bibliography unless you've read the original text.

If an author has two publications in the same year, then you distinguish between them by using the letters a and b, eg. 1991a and 1991b. You also put 1991a and 1991b in the bibliography, so that the reader can see which one you are referring to at different points in your essay.