APA (7th ed.) Citation

O'Reilly & Associates Inc. (1999). The Perl CD bookshelf: 6 bestselling books on CD-ROM. O'Reilly.

Chicago Style (17th ed.) Citation

O'Reilly & Associates Inc. The Perl CD Bookshelf: 6 Bestselling Books on CD-ROM. Sebastopol, Calif.: O'Reilly, 1999.

MLA (9th ed.) Citation

O'Reilly & Associates Inc. The Perl CD Bookshelf: 6 Bestselling Books on CD-ROM. O'Reilly, 1999.