11. European and British Commonwealth series. 60. Communist economic policy in less developed areas. Bookmark Corporate/Agency Authors: State Department Publisher: State Department Date: [1960.] SuDoc number: S 1.74:60
12. European and British Commonwealth series. 61. Background, Berlin, city between 2 worlds. [Revised 1960.] Bookmark Corporate/Agency Authors: State Department Publisher: State Department Date: [1960.] SuDoc number: S 1.74:61