Schwartz, R. L., Phoenix, T., & Foy, B. D. (2011). Learning Perl (6th ed.). O'Reilly.
Chicago Style (17th ed.) CitationSchwartz, Randal L., Tom Phoenix, and Brian D. Foy. Learning Perl. 6th ed. Sebastopol, CA: O'Reilly, 2011.
MLA (8th ed.) CitationSchwartz, Randal L., et al. Learning Perl. 6th ed. O'Reilly, 2011.
Warning: These citations may not always be 100% accurate.