TY  - BOOK
AU  - Benson,Lyman David
TI  - The Cacti of the United States and Canada
SN  - 0804708630
PY  - 1982///
CY  - Stanford, California
PB  - Stanford University Press
KW  - Cactus
KW  - United States
KW  - Canada
KW  - Botany
N1  - Bibliography : p. 987-1008
ER  -