1. Notes on recreational use of hallucinogenic mushrooms;Ott;Boletin Sociedad Mexicana de Micologia,1975
2. Hints on the Microscopical Examination of the Agaric Fruitbody;Watling;Microscopy,1968
3. Identification of the Larger Fungi;Watling,1973
4. How to Identify Mushrooms to Genus II: Micro scopic Features;Largent,1977
5. Psilocybe cultivation;Anon,1979