APA (7th ed.) Citation

Duffy, P. J., Shiflett, S., & Downey, R. G. (1978). Replication and extension of Collins' locus of control scale. U.S. Army Research Institute for the Behavioral and Social Sciences.

Chicago Style (17th ed.) Citation

Duffy, Paul J., Samuel Shiflett, and Ronald G. Downey. Replication and Extension of Collins' Locus of Control Scale. Alexandria, Va. (5001 Eisenhower Ave., Alexandria, Va. 22333): U.S. Army Research Institute for the Behavioral and Social Sciences, 1978.

MLA (9th ed.) Citation

Duffy, Paul J., et al. Replication and Extension of Collins' Locus of Control Scale. U.S. Army Research Institute for the Behavioral and Social Sciences, 1978.