...Air-speed meters for aerial navigation.
By: Prepared in the Office of the Director of Air Service.
Contributors: United States. Adjutant-General's Office.
Publisher: Govt. Print. Off.
Published: 1919
Place of publication: Washington
Language: eng
Number of pages: 12
Subjects: Aeronautical instruments
Notes: "References": p. 12.
On verso of t.p.: War Dept. Document no. 918. Office of the adjutant General.