APA (7th ed.) Citation

Christiansen, T., foy, b., Wall, L., & Orwant, J. (2012). Programming Perl, 4th Edition (4th edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Christiansen, Tom, brian foy, Larry Wall, and Jon Orwant. Programming Perl, 4th Edition. 4th edition. O'Reilly Media, Inc., 2012.

MLA (9th ed.) Citation

Christiansen, Tom, et al. Programming Perl, 4th Edition. 4th edition. O'Reilly Media, Inc., 2012.