Cita APA (7a ed.)

Wolfson, R., & Zardetto Aker, S. (1993). The PowerBook companion. Addison-Wesley [etc.].

Cita Chicago Style (17a ed.)

Wolfson, Richard, y Sharon Zardetto Aker. The PowerBook Companion. Reading, Massachusetts [etc.]: Addison-Wesley [etc.], 1993.

Cita MLA (9a ed.)

Wolfson, Richard, y Sharon Zardetto Aker. The PowerBook Companion. Addison-Wesley [etc.], 1993.