Cita APA (7a ed.)

Robinson, M., & Smith, D. (1993). Step by step: Focus on stepfamilies (1. publ.). Harvester Wheatsheaf.

Cita Chicago Style (17a ed.)

Robinson, Margaret, y Donna Smith. Step by Step: Focus on Stepfamilies. 1. publ. New York [u.a.]: Harvester Wheatsheaf, 1993.

Cita MLA (8a ed.)

Robinson, Margaret, y Donna Smith. Step by Step: Focus on Stepfamilies. 1. publ. Harvester Wheatsheaf, 1993.