APA (7th ed.) Citation

Randal, A., Sugalski, D., & Tötsch, L. (2004). Perl 6 and Parrot Essentials, Second Edition (2nd edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Randal, Allison, Dan Sugalski, and Leopold Tötsch. Perl 6 and Parrot Essentials, Second Edition. 2nd edition. O'Reilly Media, Inc., 2004.

MLA (9th ed.) Citation

Randal, Allison, et al. Perl 6 and Parrot Essentials, Second Edition. 2nd edition. O'Reilly Media, Inc., 2004.