APA (7th ed.) Citation

Sowder, J., Sowder, L., Grouws, D. A., & Good, T. L. (1989). Issues in Problem-solving Instruction. The Arithmetic teacher, 36(8), 34-35.

Chicago Style (17th ed.) Citation

Sowder, Judith, Larry Sowder, Douglas A. Grouws, and Thomas L. Good. "Issues in Problem-solving Instruction." The Arithmetic Teacher 36, no. 8 (1989): 34-35.

MLA (9th ed.) Citation

Sowder, Judith, et al. "Issues in Problem-solving Instruction." The Arithmetic Teacher, vol. 36, no. 8, 1989, pp. 34-35.