1.

図書
図書
1. American national government. 2nd ed
by Claudius O. Johnson
出版情報: New York : T.Y. Crowell, 1947
2.

図書
図書
2. Readings in American national government
edited by David Fellman
出版情報: New York : Rinehart, 1947
3.

図書
図書
3. The governments of foreign powers
Philip W. Buck, John W. Masland
出版情報: New York : H. Holt, 1947