Cita APA (7th ed.)
ebrary, Inc, Normand, J., Lempert, R. O., & O'Brien, C. P. (1994). Under the influence?: Drugs and the American work force. National Academy Press.
Cita Chicago (17th ed.)
ebrary, Inc, Jacques Normand, Richard O. Lempert, i Charles P. O'Brien. Under the Influence?: Drugs and the American Work Force. Washington, D.C.: National Academy Press, 1994.
Cita MLA (9th ed.)
ebrary, Inc, et al. Under the Influence?: Drugs and the American Work Force. National Academy Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.