TY  - BOOK
AU  - Johns,Timothy
TI  - With bitter herbs they shall eat it: chemical ecology and the origins of human diet and medicine 
T2  - Arizona studies in human ecology
SN  - 0816510237 (alk. paper)
U1  - 613.2 
PY  - 1990///
CY  - Tucson, AZ
PB  - University of Arizona Press, 
KW  - ETNOBOTANICA
KW  - HOMBRE PREHISTORICO
KW  - ALIMENTACION
KW  - PLANTAS MEDICINALES
KW  - PLANTAS
KW  - TOXINAS
KW  - QUIMICA ECOLOGICA
N1  - Series statement from label on page facing t.p; Incluye referencia bibliográfica: p. [305]-338 e índice
N2  - A painstaking, step-by-step accounting of how agriculture, through genetics, may be reaching its most vulnerable pinnacle. They are warning us of valuable resources now threatened, but still available to conserve, and they offer both public policy and hands-on ways of doing that."
UR  - https://www.cicy.mx/sitios/sib/doctoelectronico/8032.pdf
ER  -