For the subject of water resources both superficial and underground, primarily for domestic, manufacturing, or agricultural purposes.
Broader Terms
Economic policy (276)
Related Terms
Conservation of natural resources (27),
Hydraulic facilities (459),
Public utility companies (1),
Water carriers (2),
Water use (3)
This record is part of the Thesaurus for Graphic Materials I: Subject Terms (TGM) compiled by the Prints and Photographs Division, Library of Congress. more>