TY  - BOOK
TI  - Arid lands in transition: [papers]
SN  - 0871680904
AV  - S613 .I48 1969
PY  - 1970///.
CY  - Washington
PB  - [American Association for the Advancement of Science]
KW  - Agriculture
KW  - Congresses
KW  - Arid regions
N1  - Includes bibliographies.
ER  -