1. R. Ashley, “Cocaine: Its History and Effects,,” St. Martin’s Press,New York (1975).
2. E. Van Dyke, R. Byck, Cocaine, Scientific American, 246:128–146 (1982).
3. Ibid.
4. N. Stone, M. Fromme, D. Kagan, “Cocaine, Seduction and Solution,,” Clarkson N. Potter, Inc., New York (1984).
5. C. Van Dyke, R. Byck, op.cit.