Instructions for airway meteorological service/

Corporate Authors: United States. Department of Agriculture., Weather bureau
Format: Book
Language:English
Published: Washington: U. S. G. P. O., 1939
Edition:4th
Series:Circular N
Subjects:
Item Description:"Effective June 1, 1939."
Physical Description:viii, 157 p. : ill., tab., plat., folded pages ; 27 cm.
Bibliography:Includes index