Department of commerce regulations governing entry and clearance of aircraft effective as amended April 7, 1931 and United States airport of entry regulations effective November 1, 1931
Series: Aeronautics bulletin -- no. 7-c
Publisher: U.S. Govt. print. off.
Published: 1931
Place of publication: Washington
Language: eng
Subjects: Aeronautics; Law and legislation; Airports
Notes: At head of title: U.S. Department of commerce. Aeronautics branch ... .