Air-line distances between cities in the United States.
Series: U.S. Coast and Geodetic Survey. Special publication; no. 238; Special publication (U.S. Coast and Geodetic Survey) ;; no. 238.
Publisher: U.S. Govt. Print. Off.
Published: 1947
Place of publication: Washington
Language: eng
Number of pages: 246
Subjects: Airlines -- United States; United States -- Distances, etc