Meyer, A. M. T. <br/><br/>
Die sisteem as logiese samehang :  die ontwikkeling van die vorm-begrip in 'n logiese sisteem. 

 - Pretoria :  University of South Africa,  1959. 
 - Communications of the University of South Africa ;  A. 9 .
 - University of South Africa. Communications. A. 9.  University of South Africa. Communications. A. 9.  University of South Africa. Communications. A. 9. .
<br/><br/> Summary in English: p. 20-22. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.