II 69.552 

Ultima ratio regium. <The .last argument 
of kings.> <Artilleriegeskiedenis van 
suid-Afrika. -Artillery History of 
South Africa.> Ed.by C.J. Höthling. Miliary 
Information Bureau, SADF. [Illustr.] 
-Pretoria 1987. XII, 432 S. 40 
(Publications. 8.)