Johnson, D. W., & Johnson, R. T. (1991). Learning together and alone: Cooperative, competitive, and individualistic learning (Third edition.). Allyn and Bacon ; Prentice-hall, Inc..
Citação norma ChicagoJohnson, David W., and Roger T. Johnson. Learning Together and Alone: Cooperative, Competitive, and Individualistic Learning. Third edition. Boston: Allyn and Bacon ; Prentice-hall, Inc., 1991.
Citação norma MLAJohnson, David W., and Roger T. Johnson. Learning Together and Alone: Cooperative, Competitive, and Individualistic Learning. Third edition. Allyn and Bacon ; Prentice-hall, Inc., 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.