University of Zambia Library Search for 'Provider:River Basin Surveys,'

The grand detour phase,

By Caldwell, Warren W. (Warren Wendell). Lincoln, Neb., River Basin Surveys, 1969

By Caldwell, Warren W. (Warren Wendell). Lincoln, Neb., River Basin Surveys, 1966

By Smith, Carlyle Shreeve.. Lincoln, NE : River Basin Surveys, Museum of Natural History, Smithsonian Institution, 1968

By Smith, G. Hubert, 1908-. Lincoln, Neb., River Basin Surveys, Museum of Natural History, Smithsonian Institution, 1968