Online Books by
E. K. Block
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Block, E. K.: Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Columbia Basin Project, Washington, 1991-92 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1995), also by S. S. Embrey, United States Bureau of Indian Affairs, United States Bureau of Reclamation, U.S. Fish and Wildlife Service, and Geological Survey (U.S.) (page images at HathiTrust)
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