Conservation and water management.
Leopold, Luna B. 1915-2006.
Conservation and water management. - Washington, 1960. - 4 v. (26 p.) 27cm.
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.
gs 60000184
Water conservation.
QE75 / .C5 no. 414
Conservation and water management. - Washington, 1960. - 4 v. (26 p.) 27cm.
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.
gs 60000184
Water conservation.
QE75 / .C5 no. 414