I 56.44-1 

Pret:~tiss, .Augustinj1.: Civil Air D~;fel1sJ~.• A 
treatise on the protectioll cf the civil 
population against air attack.(Illustr. 
4.print.) -New York [usw.J: Whittlesey 

House (1~41). XV, 334 S. 8 


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