Cita APA (7th ed.)

Johnson, D. W., & Johnson, R. T. (1992). Positive Interdependence: The heart of cooperative learning. Interaction Book Company.

Cita Chicago (17th ed.)

Johnson, David W., i Roger T. Johnson. Positive Interdependence: The Heart of Cooperative Learning. Interaction Book Company, 1992.

Cita MLA (9th ed.)

Johnson, David W., i Roger T. Johnson. Positive Interdependence: The Heart of Cooperative Learning. Interaction Book Company, 1992.