Woollard, George Prior, 1908- <br/><br/>
International gravity measurements. 

 - Tulsa, Oklahoma :  Society of Exploration Geophysicists,  1963. 
 - ix, 518 p. :  ill. map. ;  27 cm. 
 - University of Wisconsin. Geophysical and Polar Research Center. Contribution no. 51. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gravity.