APA (7th ed.) Citation

Johnson, D. W., Johnson, R. T., & Smith, K. A. (1991). Active learning: Cooperation in the college classroom. Interaction Book Co.

Chicago Style (17th ed.) Citation

Johnson, David W., Roger T. Johnson, and Karl A. Smith. Active Learning: Cooperation in the College Classroom. Edina, MN: Interaction Book Co, 1991.

MLA (9th ed.) Citation

Johnson, David W., et al. Active Learning: Cooperation in the College Classroom. Interaction Book Co, 1991.