APA aipamena

Gilbert, C., & Williams, L. (1991). The ABC's of 1-2-3: Release 2.3 (2nd ed.). Sybex.

Chicago Style aipamena

Gilbert, Chris, and Laurie Williams. The ABC's of 1-2-3: Release 2.3. 2nd ed. San Francisco,: Sybex, 1991.

MLA aipamena

Gilbert, Chris, and Laurie Williams. The ABC's of 1-2-3: Release 2.3. 2nd ed. Sybex, 1991.