Cita APA

Leighton, G. E., Johnson, M. A., Meecham, K. G., Hill, R. G., & Hughes, J. (1987). Pharmacological profile of PD 117302, a selective kappa-opioid agonist.

Chicago Style Citation

Leighton, G. E., M. A. Johnson, K. G. Meecham, R. G. Hill, i J. Hughes. Pharmacological Profile of PD 117302, a Selective Kappa-opioid Agonist. 1987.

Cita MLA

Leighton, G. E., et al. Pharmacological Profile of PD 117302, a Selective Kappa-opioid Agonist. 1987.