Schwartz, Randal L. Learning perl / Randal L. Schwartz. - Sebastopol, Calif. : O'Reilly & Associates, 1993. - xxv, 246 p. : ill. ; 23 cm. 'Unix programming'--Cover. ISBN: 1565920422 Hadiah LCCN: 94-199197 Subjects--Topical Terms: Perl (Computer program language).