Cita APA (7a ed.)

Robertson, S., & Smith, D. (1987). Effective studying (Repr.). Longman : York Press.

Cita Chicago Style (17a ed.)

Robertson, Steve, y David Smith. Effective Studying. Repr. Harlow: Longman : York Press, 1987.

Cita MLA (9a ed.)

Robertson, Steve, y David Smith. Effective Studying. Repr. Longman : York Press, 1987.