Spradley, L. Harold <br/><br/>
Surveying and navigation for geophysical exploration 

 - Boston  International Human Resources Development Corporation  1994 
 -  Book  
<br/><br/><label>Subjects--Index Terms: </label>PROSPECTING- GEOPHYSICAL METHODS  Navigation- geophysical exploration  
<br/><br/><label>Dewey Class. No.: </label>622.15  / N4