Cita APA (7a ed.)

Safari Tech Books Online, Stein, L. D. A., & MacEachern, D. C. (1999). Writing Apache modules with Perl and C. O'Reilly.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, Lincoln D. Author Stein, y Doug Contributor MacEachern. Writing Apache Modules with Perl and C. [Place of publication not identified]: O'Reilly, 1999.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. Writing Apache Modules with Perl and C. O'Reilly, 1999.