Cover image for A step in time : changes in standard-frequency and time-signal broadcasts -- January 1, 1972
A step in time : changes in standard-frequency and time-signal broadcasts -- January 1, 1972
Title:
A step in time : changes in standard-frequency and time-signal broadcasts -- January 1, 1972
Author:
Chi, A. R.
Personal Author:
Publication Information:
Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va.] : [For sale by the National Technical Information Service], 1973.
Physical Description:
v, 31 pages : illustrations ; 27 cm.
General Note:
Cover title.

Prepared at Goddard Space Flight Center.
Language:
English
Geographic Term:
Added Author:
Added Corporate Author:
Format :
Book