Conservation and water management.
Material type:
TextPublication details: Washington, 1960.Description: 4 v. (26 p.) 27cmSubject(s): LOC classification: - QE75 .C5 no. 414
Contents:
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.
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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.
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