TY  - BOOK
AU  - TOLBA, Mostafa K.
TI  - Desertification: Its causes and conserquences
SN  - 0-08-022033-9
PY  - 1977///
CY  - New York
PB  - PERGAMON PRESS
KW  - DESERTIFICACION
KW  - CAUSAS
KW  - CONSECUENCIAS
ER  -