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Memorandum to Superintendent Leavitt dated May 16, 1938 also mentions, Fish and Fishing in Crater Lake, (Mr. Madsen's letter of May 9, 1938); "John E Doerr, Jr., Park-Naturalist."
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Date of letter: February 19, 1951
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"Dick S. Baird, Seasonal Ranger Naturalist."
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ill., maps; Shipping list no.: 90-263-P; "May 1990."; Includes bibliographical references
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ill., maps; Report title; Includes appendices: Crater Lake Liminological Studies 1984 and 1985; Includes bibliographical references; "Robert E. Benton, Superintendent Crater Lake National Park." - T.p....
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1982-2002; ill, maps; Report title; CA 9000-3-0003 Subagreement 8; Includes appendices: Crater Lake Liminological Studies 1988 and 1989; "Submitted by Robert E. Benton, Superintendent Crater Lake National ...
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ill., maps; July 1993."; "Cooperative Park Studies Unit, College of Forestry, Oregon State University."; Includes bibliographical references.; This title is a culmination of the first 10-years of the Crater ...
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9. [Image] Crater Lake National Park, Oregon: draft visitor services plan, environmental impact statement
"November 1997."; Includes bibliographical references (155-163) and indexCitation -
10. [Image] Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon)
ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80)Citation