United States. Navy Department. Bureau of Navigation. (1919). Physical exercise for retired officers on active duty. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Navigation. Physical Exercise for Retired Officers on Active Duty. Washington: [publisher not identified], 1919.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Navigation. Physical Exercise for Retired Officers on Active Duty. [publisher not identified], 1919.
Warning: These citations may not always be 100% accurate.