APA

Sharp E. B., . (1994). The dilemma of drug policy in the United States. New York: HarperCollins College Publishers.

Chicago

Sharp Elaine B, . 1994. The dilemma of drug policy in the United States. New York: HarperCollins College Publishers.

Harvard

Sharp E. B., . (1994). The dilemma of drug policy in the United States. New York: HarperCollins College Publishers.

MLA

Sharp Elaine B, . The dilemma of drug policy in the United States. New York: HarperCollins College Publishers. 1994.