United States. Army. Air Corps. (1921). Use of aerial photographs in topographic mapping: Report of Committee on Photographic Surveying of Board of Surveys and Maps of Federal Government. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Use of Aerial Photographs in Topographic Mapping: Report of Committee on Photographic Surveying of Board of Surveys and Maps of Federal Government. Washington: U.S. GPO, 1921.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Use of Aerial Photographs in Topographic Mapping: Report of Committee on Photographic Surveying of Board of Surveys and Maps of Federal Government. U.S. GPO, 1921.
Warning: These citations may not always be 100% accurate.