APA (7th ed.) Citation

Gropper, G. L. (1974). Instructional strategies. Educational Technology.

Chicago Style (17th ed.) Citation

Gropper, George L. Instructional Strategies. New Jersey: Educational Technology, 1974.

MLA (9th ed.) Citation

Gropper, George L. Instructional Strategies. Educational Technology, 1974.

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