ガストン・グスマン
Guzmán, G. "El habitat de Psilocybe muliercula Singer & Smith (=Ps. wassonii Heim), agaricaceo alucinogeno mexicano." Revista de la Sociedad Mexicana de Historia Natural 19: 215-229 (1958).
Guzmán, G. The Genus Psilocybe: A Systematic Revision of the Known Species Including the History, Distribution and Chemistry of the Hallucinogenic Species. Beihefte zur Nova Hedwigia Heft 74. J. Cramer, Vaduz, Germany (1983) [now out of print].
Guzmán, G. "Les champignons sacrés du Mexique." In: Riedlinger, T.J. (Ed.) The Sacred Mushroom Seeker: Essays for R. Gordon Wasson. Ethnomycological Studies No. 11, pp. 83–110. Dioscorides Press, Portland, OR (1990).
Guzmán, G.