United States. Congress. Senate. Committee on Military Affairs & ProQuest (Firm). (1940). Officers detailed for training and duty as aircraft observers. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Military Affairs and ProQuest (Firm). Officers Detailed for Training and Duty as Aircraft Observers. Washington: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Military Affairs and ProQuest (Firm). Officers Detailed for Training and Duty as Aircraft Observers. [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.