APA (7th ed.) Citation

Grasing, K., Li, N., He, S., Parrish, C., Delich, J., & Glowa, J. (2003). A new progressive ratio schedule for support of morphine self-administration in opiate dependent rats. Psychopharmacology, 168(4), 387. https://doi.org/10.1007/s00213-003-1442-x

Chicago Style (17th ed.) Citation

Grasing, Kenneth, Ning Li, Shaunteng He, Christopher Parrish, John Delich, and John Glowa. "A New Progressive Ratio Schedule for Support of Morphine Self-administration in Opiate Dependent Rats." Psychopharmacology 168, no. 4 (2003): 387. https://doi.org/10.1007/s00213-003-1442-x.

MLA (9th ed.) Citation

Grasing, Kenneth, et al. "A New Progressive Ratio Schedule for Support of Morphine Self-administration in Opiate Dependent Rats." Psychopharmacology, vol. 168, no. 4, 2003, p. 387, https://doi.org/10.1007/s00213-003-1442-x.