APA-čujuhus (7. p.)
Schrenk, M. (2007). Webbots, spiders, and screen scrapers: A guide to developing Internet agents with PHP/CURL. No Starch Press.
Chicago-čujuhus (17. p.)
Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. San Francisco: No Starch Press, 2007.
MLA-čujuhus (9. p.)
Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. No Starch Press, 2007.
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