Παραπομπή σε μορφή APA (7η εκδ.)

Sobel, M. A., & Maletsky, E. M. (1988). Teaching mathematics: A sourcebook of aids, activities, and strategies (2nd ed.). Prentice Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sobel, Max A., και Evan M. Maletsky. Teaching Mathematics: A Sourcebook of Aids, Activities, and Strategies. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sobel, Max A., και Evan M. Maletsky. Teaching Mathematics: A Sourcebook of Aids, Activities, and Strategies. 2nd ed. Prentice Hall, 1988.