APA citiranje

Snodgrass, S. H., & McMillan, D. E. (1996). Drug discrimination under a concurrent schedule.

Citação norma Chicago

Snodgrass, S H., and D E. McMillan. Drug Discrimination Under a Concurrent Schedule. 1996.

MLA citiranje

Snodgrass, S H., and D E. McMillan. Drug Discrimination Under a Concurrent Schedule. 1996.