APA (7th ed.) Citation

Drummond, F. E., Barker, D. G., Hope, L., & Lutes, C. (1981). A comparison of psychotherapeutic treatments for muscle-contraction headache.

Chicago Style (17th ed.) Citation

Drummond, Freddie Eugene, Donald G. Barker, Lannes Hope, and Candida Lutes. A Comparison of Psychotherapeutic Treatments for Muscle-contraction Headache. 1981.

MLA (9th ed.) Citation

Drummond, Freddie Eugene, et al. A Comparison of Psychotherapeutic Treatments for Muscle-contraction Headache. 1981.