TY  - BOOK
AU  - Guzmàn,Gastòn
TI  - The genus psilocybe: a systematic revision of the known species including the history, distribution and chemistry of the halluncinogenic species 
SN  - 3768254747
PY  - 1983///
CY  - Vaduz
PB  - Verlag Von J. Cramer
ER  -