Cotterell, Maurice, <br/><br/>
Supergods :  they came on a mission to save mankind / 
Maurice M. Cotterell. 
 - 240 pages :  ill. (some color), maps ;  19 cm. 
<br/><br/><label>ISBN: </label>0722534639  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mayas--Extraterrestrial influences.<br/>Mayas--Antiquities.