Cita APA (7th ed.)

Holzner, S. (2001). Perl black book (2nd ed.). Coriolis Group Books.

Cita Chicago (17th ed.)

Holzner, Steven. Perl Black Book. 2nd ed. Scottsdale, Ariz.: Coriolis Group Books, 2001.

Cita MLA (9th ed.)

Holzner, Steven. Perl Black Book. 2nd ed. Coriolis Group Books, 2001.