Visser, D. J. L. <br/><br/>
The ochre deposits of the Riversdale district,  Cape Province, 
by D.J.L. Visser ... 
 - Pretoria,  Government printer,  1937. 
 - 21 p. incl. illus., tables, diagrs.  fold map.  24 cm. 
 - South Africa. [Geological Survey] Geological series. Bulletin  no. 9 .
 - Geological Survey (South Africa).  Bulletin ;  no. 9. .
<br/><br/> At head of title: ... Union of South Africa. Department of mines. 
<br/><br/>Bibliography: p. 21. 
<br/><br/><label>LCCN: </label>gs 37000261  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ocher.<br/>Mines and mineral resources--South Africa--Cape of Good Hope.
<br/><br/><label>LC Class. No.: </label>QE325  / .A53 no. 9