TY  - BOOK
ED  - United Nations Educational, Scientific and Cultural Organization.
TI  - Plant ecology : : proceedings of the Montpellier symposium=Ecologie vegetale : actes du colloque de Montpellier
PY  - 1955///
CY  - Paris , 
PB  - 
KW  - Plant ecology
KW  - Arid regions
ER  -