APA (7th ed.) Citation

Riddle, J. M. (1992). Quid pro quo: Studies in the history of drugs. Variorum ; Ashgate Pub. Co..

Chicago Style (17th ed.) Citation

Riddle, John M. Quid Pro Quo: Studies in the History of Drugs. [Aldershot], Hampshire, Great Britain : Brookfield, Vt., USA: Variorum ; Ashgate Pub. Co., 1992.

MLA (9th ed.) Citation

Riddle, John M. Quid Pro Quo: Studies in the History of Drugs. Variorum ; Ashgate Pub. Co., 1992.