Brosch. 1185 

Ploeger, Jan.-The Fortification of Pretoria. 
Fort Klapperkop -yesterday and tOday. ByJan Ploeger, assisted by H.J. Botha.LI11ustr 
-PretoEia: The Government Printer 1 :~'68. 
95 s. 4 

(Publication.l.)