Mileage book
Edition: 3d rev. to September 1, 1949.
Published: 1949
Place of publication: Washington?
Language: eng
Subjects: Airways
Table of contents: title: No. 1. Airport-to-airport mileages over interstate routes of certificated air carriers.; title: no. 2. Airport-to-airport mileages over international and overseas routes of certificated air carriers.