TY  - BOOK
AU  - Shreve,Forrest
AU  - Wiggins,Ira L.
TI  - Vegetation and flora of the Sonora Desert
U1  - 582.7217 
PY  - 1964///
CY  - Stanford, CA
PB  - Stanford University Press, 
KW  - TAXONOMIA VEGETAL
ER  -