Cover image for The world magnetic survey
Title:
The world magnetic survey
Author:
Heppner, James P.
Personal Author:
Publication Information:
Washington, D.C. : National Aeronautics and Space Administration, 1964.
Physical Description:
iii, 41 pages : illustrations ; 27 cm.
General Note:
"January 1964."
Language:
English
Subject Term:
Format :
Book