Cooke, H. B. S. (Herbert Basil Sutton) <br/><br/>
Observations relating to quaternary environments in east and southern Africa / 
by H.B.S. Cooke. 
 - Johannesburg :  Geological Society of South Africa : South African Association for the Advancement of Science : South African Geographical Society,  Geological Society of South Africa : South African Association for the Advancement of Science : South African Geographical Society,  Geological Society of South Africa : South African Association for the Advancement of Science : South African Geographical Society,  [1957] 
 - Alex L. du Toit memorial lectures ;  no. 5 .
<br/><br/> The Geological Society of South Africa, annexure to vol. 60. 
<br/><br/>"References": p. 69-73. 
<br/><br/><label>LCCN: </label>88175104 
<br/><br/><label>LC Class. No.: </label>MLCM 91/09112 (G)