United States. Bureau of Reclamation. (1981). Reclamation era. Bureau of Reclamation ; For sale by the Supt. of Docs., U.S. G.P.O..
Chicago-referens (17:e uppl.)United States. Bureau of Reclamation. Reclamation Era. Denver, Colo. : Washington, D.C.: Bureau of Reclamation ; For sale by the Supt. of Docs., U.S. G.P.O., 1981.
MLA-referens (8:e uppl.)United States. Bureau of Reclamation. Reclamation Era. Bureau of Reclamation ; For sale by the Supt. of Docs., U.S. G.P.O., 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.