Harvard referencing is a method of acknowledging sources of information and quotations used in an assignment. It supports arguments and helps avoid plagiarism. Plagiarism is presenting another's ideas or words as your own, whether from books, articles or websites, and is a form of cheating. In-text citations identify sources in the body of the text using the author's surname and year, while a bibliography lists all sources cited at the end of the assignment in alphabetical order. Sources are referenced consistently to enable the reader to locate the original items.