TY  - BOOK
AU  - Leopold,Luna B.
TI  - Conservation and water management
AV  - QE75 .C5 no. 414
PY  - 1960///
CY  - Washington
KW  - Water conservation
N1  - Contents.-pt. A. Conservation and protection.-pt.B The challenge of water management.-pt. C. The conservation attitude.-pt. D. Ecological systems and the water resource
ER  -