APA

Grifo F., Newman D. J., Fairfield A. S., Bhattacharya B. & Grupenhoff J. T. (1997). Origins of prescription drugs. Washinton: Island Press.

Chicago

Grifo Francesca, Newman David J, Fairfield Alexandra S, Bhattacharya Bhaswati and Grupenhoff John T. 1997. Origins of prescription drugs. Washinton: Island Press.

Harvard

Grifo F., Newman D. J., Fairfield A. S., Bhattacharya B. and Grupenhoff J. T. (1997). Origins of prescription drugs. Washinton: Island Press.

MLA

Grifo Francesca, Newman David J, Fairfield Alexandra S, Bhattacharya Bhaswati and Grupenhoff John T. Origins of prescription drugs. Washinton: Island Press. 1997.