Warmelo, Nicolaus Jacobus van. <br/><br/>
Die Tl^okwa en Birwa van Noord Transvaal. 

 - Pretoria :  die Staatsdrukher,  1953. 
 - Ethnologiese recks ;  nr. 29 .
 - South Africa. Dept. of Native Affairs. Ethnological publications ;  South Africa. Dept. of Native Affairs. Ethnological publications ;  South Africa. Dept. of Native Affairs. Ethnological publications ;  no. 29. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Indigenous peoples -- South Africa.--Indigenous peoples -- South Africa.