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A Progress Report of Alkali Land Reclamation Investigations in Eastern Oregon

Albert Edward EngbretsonBentley Ball FultonCarl Ephraim SchusterDavid Edmund StephensErnest Herman WiegandHenry HartmanWilliam Vernal HalversenWilliam Waters JohnstonGeorge Robert HyslopObil ShattuckWilbur Louis PowersRobert Withycombe

出版	Oregon Agricultural College Experiment Station, 1924
URL	http://books.google.com.hk/books?id=5KyWAQAACAAJ&hl=&source=gbs_api