Cita APA (7th ed.)

Johnson, D. W., Johnson, R. T., & Holubec, E. J. (1994). The nuts and bolts of cooperative learning. Interaction Book Company.

Cita Chicago (17th ed.)

Johnson, David W., Roger T. Johnson, i Edythe Johnson Holubec. The Nuts and Bolts of Cooperative Learning. Interaction Book Company, 1994.

Cita MLA (9th ed.)

Johnson, David W., et al. The Nuts and Bolts of Cooperative Learning. Interaction Book Company, 1994.