Hay, Richard LeRoy, 1926- <br/><br/>
Geology of the olduvai gorge :  a study of sedimentation in a semiarid basin / 
by Richard L. Hay 
 - Berkeley, Calif. :  University of California Press,  1976 
 - xvi, 203 p., 14 leaves of plates (6 fold.) :  ill. ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 198-200. 
<br/><br/><label>ISBN: </label>0520029631 
<br/><br/><label>LCCN: </label>74-029804 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Olduvai Gorge--Tanzania