Guzmán, G. (2012). New taxonomical and ethnomycological observations on Psilocybe s.s. (Fungi, Basidiomycota, Agaricomycetidae, Agaricales, Strophariaceae) from Mexico, Africa and Spain. Instituto de Ecología, A.C.
Lua i Stíl Chicago (17ú heag.)Guzmán, Gastón. New Taxonomical and Ethnomycological Observations on Psilocybe S.s. (Fungi, Basidiomycota, Agaricomycetidae, Agaricales, Strophariaceae) from Mexico, Africa and Spain. Instituto de Ecología, A.C, 2012.
Lua MLA (9ú heag.)Guzmán, Gastón. New Taxonomical and Ethnomycological Observations on Psilocybe S.s. (Fungi, Basidiomycota, Agaricomycetidae, Agaricales, Strophariaceae) from Mexico, Africa and Spain. Instituto de Ecología, A.C, 2012.