APA Citation

Engel, A., & Engel, A. (1998). Problem-solving strategies. New York, New York: Springer.

Chicago Style Citation

Engel, Arthur, and Arthur Engel. Problem-solving Strategies. New York, New York: Springer, 1998.

MLA Citation

Engel, Arthur, and Arthur Engel. Problem-solving Strategies. New York, New York: Springer, 1998.

Warning: These citations may not always be 100% accurate.