Cita APA (7th ed.)
Weil, A., & Rosen, W. (1998). From chocolate to morphine: Everything you need to know about mind-altering drugs (Revised and updated.). Houghton Mifflin company.
Cita Chicago (17th ed.)
Weil, Andrew, i Winifred Rosen. From Chocolate to Morphine: Everything You Need to Know About Mind-altering Drugs. Revised and updated. Boston ; New York: Houghton Mifflin company, 1998.
Cita MLA (9th ed.)
Weil, Andrew, i Winifred Rosen. From Chocolate to Morphine: Everything You Need to Know About Mind-altering Drugs. Revised and updated. Houghton Mifflin company, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.