Hock, R. (2004). The extreme searcher's internet handbook: A guide for the serious searcher. CyberAge Books.
Lua i Stíl Chicago (17ú heag.)Hock, Randolph. The Extreme Searcher's Internet Handbook: A Guide for the Serious Searcher. Medford, N.J.: CyberAge Books, 2004.
Lua MLA (8ú heag.)Hock, Randolph. The Extreme Searcher's Internet Handbook: A Guide for the Serious Searcher. CyberAge Books, 2004.
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