APA (7th ed.) Citation

Gagné, R. M. (1974). Essentials of learning for instruction. Dryden press.

Chicago Style (17th ed.) Citation

Gagné, Robert M. Essentials of Learning for Instruction. Hinsdale, Ill.: Dryden press, 1974.

MLA (9th ed.) Citation

Gagné, Robert M. Essentials of Learning for Instruction. Dryden press, 1974.