O'Keefe, John A.  1916- <br/><br/>
Tektites and their origin / 
John A. O'Keefe 
 - Amsterdam :  Elsevier Scientific Pub.,  1976 
 - xii, 254 p. :  ill. ;  25 cm. 
 - Developments in petrology ;  4 .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0444413502 :  PND 95.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tektite
<br/><br/><label>Dewey Class. No.: </label>523.51