Cita APA (7a ed.)

Johnson, D. W., & Johnson, F. P. (2014). Joining together: Group theory and group skills (Eleventh edition.). Pearson.

Cita Chicago Style (17a ed.)

Johnson, David W., y Frank Pierce Johnson. Joining Together: Group Theory and Group Skills. Eleventh edition. Harlow, Essex, [England]: Pearson, 2014.

Cita MLA (8a ed.)

Johnson, David W., y Frank Pierce Johnson. Joining Together: Group Theory and Group Skills. Eleventh edition. Pearson, 2014.