APA (7th ed.) Citation

Herrmann, E. C. (1999). Mastering Perl 5. Sybex.

Chicago Style (17th ed.) Citation

Herrmann, Eric C. Mastering Perl 5. San Francisco, CA: Sybex, 1999.

MLA (8th ed.) Citation

Herrmann, Eric C. Mastering Perl 5. Sybex, 1999.