Cita APA (7a ed.)

Johnson, D. W., & Johnson, F. P. (2009). Joining together: Group theory and group skills (10th ed.). Pearson Education.

Cita Chicago Style (17a ed.)

Johnson, David W., y Frank P. Johnson. Joining Together: Group Theory and Group Skills. 10th ed. Upper Saddle River, N.J: Pearson Education, 2009.

Cita MLA (9a ed.)

Johnson, David W., y Frank P. Johnson. Joining Together: Group Theory and Group Skills. 10th ed. Pearson Education, 2009.