Home › Authors › Maher, John T. 👤 Maher, John T. b. 1924 ยท 3 books Books by Maher, John T. Narcotics & other substances s Narcotics & other substances subject to the Controlled Substances Act of 1970 1980 Erythroxylon coca Erythroxylon coca 1978 Opium and its derivatives Opium and its derivatives 1975