The 1950 world isogonic chart

• 1 March 1951
• journal article
• Published by American Geophysical Union (AGU) in Journal of Geophysical Research
• Vol. 56  (1) , 81-84
• https://doi.org/10.1029/jz056i001p00081

Abstract

Keywords

• EDITION
• CARDS
• WORLD ISOGONIC CHART
• HYDROGRAPHIC OFFICE
• WORKING AGREEMENT
• STATES NAVY
• HAND