The Sumner Line of Position Furnished Ready to Lay Down Upon the Chart by Means of Tables of Simltaneous Hour Angle and Azimuth of the Navigator's Stars. Between 27 ̊and 63 ̊of Declination, Latitude 60 ̊N. to 60 ̊S.
Author: United States. Hydrographic Office
Publisher:
Published: 1925
Total Pages: 724
ISBN-13:
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