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CIBA FOUNDATION SYMPOSIA Cocaine: scientific and social dimensions Chester: John Wiley and Sons 1992

P. ERICKSON-E. M. ADLAF-R. G. SMART-G. F. MURRAY The steel drug: cocaine and crack in perspective (2nd edition) New York: Lexington Books 1994

L. GRINSPOON-J. B. BAKALAR Cocaine: a drug and its social evolution New York: Basic Books 1976 (rev. ed. 1985)

L. GRINSPOON Marihuana reconsidered (2nd edition) Cambridge: Harvard University Press 1977

R. A. ROFFMAN Marijuana as medicine Seattle: Madrona Publishers 1982

S. FREUD Cocaine papers (ed. by R. Byck) New York: Stonehill Publishing Company 1974 (ed. italiana: Sulla cocaina – Roma: Newton Compton)