APA (7th ed.) Citation

Knifong, J. D., & Holtan, B. D. (1976). A Search for Reading Difficulties Among Erred Word Problems. Distributed by ERIC Clearinghouse.

Chicago Style (17th ed.) Citation

Knifong, J. Dan, and Boyd D. Holtan. A Search for Reading Difficulties Among Erred Word Problems. [S.l.]: Distributed by ERIC Clearinghouse, 1976.

MLA (8th ed.) Citation

Knifong, J. Dan, and Boyd D. Holtan. A Search for Reading Difficulties Among Erred Word Problems. Distributed by ERIC Clearinghouse, 1976.