Third International Symposium on the North American Vertical Datum: NAVD Symposium '85, Rockville, Maryland, April 21-26, 1985 : Proceedings, Volume 55

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U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, 1985 - Earth - 480 pages
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Contents

Preface 1
10
Status of NGS North American Wertical Datum NAWD Project
21
Status of the Wertical Control Networks in Mexico
37

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