As information formats and technologies are changing rapidly, standards and conventions for citing many electronic sources have not yet been formalised by style authorities. If there is no specific guideline for a particular electronic source, base your citation on an existing guideline.
The date on which you viewed or downloaded the source. As online materials can change or disappear at any time, you must cite the date on which you accessed the information.
Finding bibliographic information for print sources like books is easy; the required details are usually on the first few pages. With electronic sources, finding the relevant information is not always so straightforward. You may need to look a little harder and be resourceful.
To find this information, try the following:
The term publisher is used to cover both the traditional idea of a publisher of printed sources, as well as organisations responsible for maintaining websites. In this case, look for the largest identifiable unit.
See the table of citations for more information. In the unlikely event that you can’t find any information, cite the url of the site as the author. However, if the sponsorship and authorship of a site can't be identified, think twice about using it for your research. Currency is also important. If factual or statistical information is undated, don’t use it.
Many electronic resources have no page numbers. When they are not available, omit this information from your in-text citation.
In the case of electronic journal articles (those available in online form only) you can use section or paragraph numbers (please check with your tutor for their preferences). Sections of an article are divided by subheadings. For example:
(Morris 2004, sec. 3, par. 2)