RefWorks is a web tool which provides you with your own personal reference management database. You can use RefWorks to record and store references you found during your research and create in text citations and bibliographies online.
Alternatives to RefWorks include Mendeley and Zotero.
Staffordshire University RefZone provides advice and examples to help you with referencing. There are examples to follow for a range of material including images, standards and legislation in addition to books, journal articles and websites. Indicating the sources you have used in the text of your work (citing) and creating a list of references of sources you've used is an important part of the writing process. Accurate referencing of all the sources you have used will help you avoid accusations of plagiarism.