Alex. L. du Toit memorial lecturers; No.1 

 - [Johannesburg] :  Geological Society of South Afica,  1950? 
 - p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Du Toit, Alexander Logie, 1878-1948 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Collections--Africa, South
<br/><br/><label>Dewey Class. No.: </label>PS 550.6268 A43