Lemay, L. (1999). Sams teach yourself Perl in 21 days. Sams Pub. ; techmedia.
Cita Chicago (17th ed.)Lemay, Laura. Sams Teach Yourself Perl in 21 Days. Indianapolis, Ind. : New Delhi: Sams Pub. ; techmedia, 1999.
Cita MLA (8th ed.)Lemay, Laura. Sams Teach Yourself Perl in 21 Days. Sams Pub. ; techmedia, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.