Watkins, Joel S.  1932-2016 <br/><br/>
Regional geologic implications of the gravity and magnetic fields of a part of eastern Tennessee and Southern Kentucky / 
by Joel S. Watkins. 
 -- Washington :   United States Government Printing Office,   1964 
 - 17 p. -- 
 (Geological Survey Professional Paper  ;  516-A).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geofísica<br/>Kentucky<br/>Tennessee
<br/><br/><label>Universal Decimal Class. No.: </label>550.3(768/769)