Dyfyniad APA

Schwartz, R. L., Phoenix, T., & Foy, B. D. (2008). Learning Perl (5th ed.). O'Reilly ; Shroff publishers.

Dyfyniad Arddull Chicago

Schwartz, Randal L., Tom Phoenix, and Brian D. Foy. Learning Perl. 5th ed. Beijing ; Sebastopol : Mumbai: O'Reilly ; Shroff publishers, 2008.

Dyfyniad MLA

Schwartz, Randal L., et al. Learning Perl. 5th ed. O'Reilly ; Shroff publishers, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.