APA (7th ed.) Citation

Holzner, S. (1999). Perl core language little black book. Coriolis.

Chicago Style (17th ed.) Citation

Holzner, Steven. Perl Core Language Little Black Book. Scottsdale, Ariz.: Coriolis, 1999.

MLA (9th ed.) Citation

Holzner, Steven. Perl Core Language Little Black Book. Coriolis, 1999.