BECK, A.E <br/><br/>
PHYSICAL PRINCIPLES OF EXPLORATIONS METHODS:  AN INTRODUCTORY TEXTS FOR GEOLOGY AND GEOPHYSICS FOR STUDENTS 
A.E BECK 
 - LONDON  THE MACMILLAN PRESS LTD  1981 
 - XII;234P  ILL 
<br/><br/><label>ISBN: </label>0 26393 6