Umland, Craig <br/><br/>
Mystery of the ancients :  early spacemen and the Mayas / 
Craig Umland and Eric Umland 
 - London :  Souvenir Press,  1975 
 - [5], 186 p. :  ill., map ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0285621629 :  PND 3.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mayas--Antiquities<br/>Interplanetary voyages
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mexico--Antiquities<br/>Central America--Antiquities
<br/><br/><label>Dewey Class. No.: </label>970.42