APA (7th ed.) Citation

Jorgensen, C., & Guy, A. (1988). Mastering 1-2-3 (2nd ed.). Sybex.

Chicago Style (17th ed.) Citation

Jorgensen, Carolyn, and Aisling Guy. Mastering 1-2-3. 2nd ed. San Fransisco, USA: Sybex, 1988.

MLA (9th ed.) Citation

Jorgensen, Carolyn, and Aisling Guy. Mastering 1-2-3. 2nd ed. Sybex, 1988.