(2004). Spidering hacks / Kevin Hemenway and Tara Calishain.
Cita Chicago (17th ed.)Spidering Hacks / Kevin Hemenway and Tara Calishain. 2004.
Cita MLA (9th ed.)Spidering Hacks / Kevin Hemenway and Tara Calishain. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.