Jenkins, D. S. The origin, distribution, and airphoto identification of United States soils. With special reference to airport and highway engineering [microform]. Photoduplication Service, Library of Congress.
Chicago Style (17th ed.) CitationJenkins, D. S. The Origin, Distribution, and Airphoto Identification of United States Soils. With Special Reference to Airport and Highway Engineering [microform]. Washington, D.C: Photoduplication Service, Library of Congress.
MLA (9th ed.) CitationJenkins, D. S. The Origin, Distribution, and Airphoto Identification of United States Soils. With Special Reference to Airport and Highway Engineering [microform]. Photoduplication Service, Library of Congress.
Warning: These citations may not always be 100% accurate.