Cita APA (7a ed.)

Ray, B. A. (1988). Learning factors in substance abuse. DHHS publication.

Cita Chicago Style (17a ed.)

Ray, Barbara A. "Learning Factors in Substance Abuse." DHHS Publication 1988.

Cita MLA (8a ed.)

Ray, Barbara A. "Learning Factors in Substance Abuse." DHHS Publication, 1988.