Foley, R. C. (1987). Field-Surveying and topographic mapping in Alaska, 1947-83: A chronolog. review of surveying activities in Alaska from 1947 to 1983, including a brief description of camp life and some of the hardships and unusual experiences encountered. U.S. Geolog. Survey, Federal Center.
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Chicago-viite (17. p.)
Foley, Robert C. Field-Surveying and Topographic Mapping in Alaska, 1947-83: A Chronolog. Review of Surveying Activities in Alaska from 1947 to 1983, Including a Brief Description of Camp Life and Some of the Hardships and Unusual Experiences Encountered. Denver: U.S. Geolog. Survey, Federal Center, 1987.
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MLA-viite (9. p.)
Foley, Robert C. Field-Surveying and Topographic Mapping in Alaska, 1947-83: A Chronolog. Review of Surveying Activities in Alaska from 1947 to 1983, Including a Brief Description of Camp Life and Some of the Hardships and Unusual Experiences Encountered. U.S. Geolog. Survey, Federal Center, 1987.
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