Cita APA (7th ed.)

Corey, G., Corey, M. S., & Haynes, R. (2000). Evolution of a group: Student video and workbook. Brooks/Cole.

Cita Chicago (17th ed.)

Corey, Gerald, Marianne Schneider Corey, i Robert Haynes. Evolution of a Group: Student Video and Workbook. Pacific Grove: Brooks/Cole, 2000.

Cita MLA (9th ed.)

Corey, Gerald, et al. Evolution of a Group: Student Video and Workbook. Brooks/Cole, 2000.