If you quote material from the Knowledge Base in your work, please cite it accurately. An appropriate citation for the online home page would be:
Trochim, William M. The Research Methods Knowledge Base, 2nd Edition. Internet WWW page, at URL: <http://www.socialresearchmethods.net/kb/> (version current as of October 20, 2006).
The date that each page was last edited is given at the bottom of the page and can be used for "version current as of..."
If you are citing the printed version, the citation would be:
Trochim, W. (2000). The Research Methods Knowledge Base, 2nd Edition. Atomic Dog Publishing, Cincinnati, OH.
Copyright �2006, William M.K. Trochim, All Rights Reserved
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Last Revised: 10/20/2006