The document provides an overview of the Harvard citation style, including its origins at Harvard University in the 1880s. It describes two types of citations in the Harvard style - in-text citations and reference lists. In-text citations include the author's last name and year of publication in parentheses and are used to cite direct quotes, paraphrases, or references within the body of the text. Reference lists appear at the end of a work and provide full citations for all sources so readers can locate the original materials. The document outlines the various components included in citations for different source types such as books, journal articles, websites, and offers examples of citations formatted in the Harvard style.