r-------------------------------~----- B 112.537 I. Hee*esen): Vereinigte Staaten Report Seroiannual Secretary. -Department of defense. Semiannual report of the secretaryof defense and the semiannua1 reports of the secretary of the air force, January 1 s to June 30, 1958. -Washington: United Stat Ggvernroent Printing Office 1959. VI, 395 S. 8