Johnson, D. W., & Johnson, R. T. (1991). Learning together and alone: Cooperative, competitive, and individualistic learning (Third edition.). Allyn and Bacon ; Prentice-hall, Inc..
Цитирование в стиле Чикаго (17-е изд.)Johnson, David W., и Roger T. Johnson. Learning Together and Alone: Cooperative, Competitive, and Individualistic Learning. Third edition. Boston: Allyn and Bacon ; Prentice-hall, Inc., 1991.
Цитирование MLA (8-е изд.)Johnson, David W., и Roger T. Johnson. Learning Together and Alone: Cooperative, Competitive, and Individualistic Learning. Third edition. Allyn and Bacon ; Prentice-hall, Inc., 1991.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.