Piper, A. M. (1944). Water-table fluctuations in the Spokane valley and contiguous area Washington-Idaho. U. S. Govt. Print. Off..
Style de citation Chicago (17e éd.)Piper, Arthur M. Water-table Fluctuations in the Spokane Valley and Contiguous Area Washington-Idaho. Washington: U. S. Govt. Print. Off., 1944.
Style de citation MLA (8e éd.)Piper, Arthur M. Water-table Fluctuations in the Spokane Valley and Contiguous Area Washington-Idaho. U. S. Govt. Print. Off., 1944.
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