TY  - BOOK
AU  - Yeaton,R
TI  - A cyclical relationship between larrea tridentata and opuntia leptocaulis in the northern chihuahian desert
UR  - https://drive.google.com/file/d/1Y9rPk0Y-Va01ZduzuzpqjECoe0lSvTjT/view?usp=drivesdk
ER  -