APA (7th ed.) Citation

Langdon, D. G. (1978). The adjunct study guide. Educational Technology Publications.

Chicago Style (17th ed.) Citation

Langdon, Danny G. The Adjunct Study Guide. Englewood Cliffs, N.J: Educational Technology Publications, 1978.

MLA (9th ed.) Citation

Langdon, Danny G. The Adjunct Study Guide. Educational Technology Publications, 1978.