TY  - JOUR
TI  - OBSERVATIONS ON THE VEGETATION OF CHIHUAHUA
T2  - Madroño; a West American journal of botany
VL  - 5
UR  - https://www.biodiversitylibrary.org/part/169687
PB  - California Botanical Society
CY  - Berkeley
PY  - 1939
SP  - 1
EP  - 13
AU  - Shreve, Forrest
ER  -