United States. Navy Department. Bureau of Aeronautics & Diehl, W. S. (1930). Surface area coefficients for airship envelopes. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics and Walter S. Diehl. Surface Area Coefficients for Airship Envelopes. Washington: U.S. GPO, 1930.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics and Walter S. Diehl. Surface Area Coefficients for Airship Envelopes. U.S. GPO, 1930.
Warning: These citations may not always be 100% accurate.