APA

Water Resources Council U.S, . (1968). The Nation's water resources: the first national assessment. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Chicago

Water Resources Council U.S, . 1968. The Nation's water resources: the first national assessment. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Harvard

Water Resources Council U.S, . (1968). The Nation's water resources: the first national assessment. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.].

MLA

Water Resources Council U.S, . The Nation's water resources: the first national assessment. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.]. 1968.