Cita APA (7a ed.)
Schenk, S., Partridge, B., & Shippenberg, T. S. (1999). U69593, a kappa-opioid agonist, decreases cocaine self-administration and decreases cocaine-produced drug-seeking. Psychopharmacology, 144(4), 339-340.
Cita Chicago Style (17a ed.)
Schenk, S., Brian Partridge, y Toni S. Shippenberg. "U69593, a Kappa-opioid Agonist, Decreases Cocaine Self-administration and Decreases Cocaine-produced Drug-seeking." Psychopharmacology 144, no. 4 (1999): 339-340.
Cita MLA (9a ed.)
Schenk, S., et al. "U69593, a Kappa-opioid Agonist, Decreases Cocaine Self-administration and Decreases Cocaine-produced Drug-seeking." Psychopharmacology, vol. 144, no. 4, 1999, pp. 339-340.
Precaución: Estas citas no son 100% exactas.