11 57.866 

Roone;v, AndLew iL: The f...OrtulleS of war. 
4 great batt1es of Wor1d War 11. (I11ustr., 

1. ed.) -Boston [usw.l: Litt1e J Brown & c6 
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( 1962). 236 S. J 4 ung~z. B 1 • 4