Bell, Peter M. <br/><br/>
U.S. National Report, 1967-1971. Fifteenth General Assembly International Union of Geodesy and Geophysics 

 - Washington:  American Geophysics Union  1971 
 - 539p. :   il; 28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geodesia<br/>Geodesia