Cita APA (7a ed.)
Walker, D. J., & Zacny, J. P. (1998). Subjective, psychomotor, and analgesic effects of oral codeine and morphine in healthy volunteers. Psychopharmacology, 140(2), 191-192.
Cita Chicago Style (17a ed.)
Walker, D. J., y James P. Zacny. "Subjective, Psychomotor, and Analgesic Effects of Oral Codeine and Morphine in Healthy Volunteers." Psychopharmacology 140, no. 2 (1998): 191-192.
Cita MLA (9a ed.)
Walker, D. J., y James P. Zacny. "Subjective, Psychomotor, and Analgesic Effects of Oral Codeine and Morphine in Healthy Volunteers." Psychopharmacology, vol. 140, no. 2, 1998, pp. 191-192.
Precaución: Estas citas no son 100% exactas.