United States. Army. Air Corps. (1920). Aerial bombardment manual for use in Air Service Bombardment School: Part 5. Operations (service squadrons) and appendix. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Aerial Bombardment Manual for Use in Air Service Bombardment School: Part 5. Operations (service Squadrons) and Appendix. [Washington]: GPO, 1920.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Aerial Bombardment Manual for Use in Air Service Bombardment School: Part 5. Operations (service Squadrons) and Appendix. GPO, 1920.
Warning: These citations may not always be 100% accurate.