Schrenk, M. (2012). Webbots, spiders, and screen scrapers: A guide to developing Internet agents with PHP/CURL (2nd ed.). No Starch Press.
Citace podle Chicago (17th ed.)Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. 2nd ed. San Francisco: No Starch Press, 2012.
Citace podle MLA (9th ed.)Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. 2nd ed. No Starch Press, 2012.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..