Prehistoric rock pictures in Europe and Africa, from material in the archives of the Research Institute for the Morphology of civilization, Frankfort-on-main :  Leo Frobenius and Douglas C. Fox. 

 - Reprint ed. 
 - New York :  Arno Press,  1972 
 - 79 p. :  illus. ;  27 cm. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0405015615 
<br/><br/><label>LCCN: </label>74169321  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroglyphs.<br/>Rock paintings.