Cita APA (7a ed.)
Schrenk, M. (2007). Webbots, spiders, and screen scrapers: A guide to developing Internet agents with PHP/CURL. No Starch Press.
Cita Chicago Style (17a ed.)
Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. San Francisco: No Starch Press, 2007.
Cita MLA (9a ed.)
Schrenk, Michael. Webbots, Spiders, and Screen Scrapers: A Guide to Developing Internet Agents with PHP/CURL. No Starch Press, 2007.
Precaución: Estas citas no son 100% exactas.