APA (7th ed.) Citation

Sobel, M., & Maletsky, E. M. (1991). Teaching mathematics: A sourcebook of aids, activities and strategies (2nd ed.). Allyn and Bacon.

Chicago Style (17th ed.) Citation

Sobel, Max, and Evan M. Maletsky. Teaching Mathematics: A Sourcebook of Aids, Activities and Strategies. 2nd ed. Boston: Allyn and Bacon, 1991.

MLA (9th ed.) Citation

Sobel, Max, and Evan M. Maletsky. Teaching Mathematics: A Sourcebook of Aids, Activities and Strategies. 2nd ed. Allyn and Bacon, 1991.