TY  - BOOK
AU  - BOWERS,J.E.
TI  - Environmental determinants of flowering date in the columnar cactus Carnegiea gigantea in the northern Sonoran Desert
UR  - https://drive.google.com/file/d/1sx6OB4qPv_bZgxs5I1UCGmMzf7Q7MX46/view?usp=drivesdk
ER  -