Bailey, Sydney D., author
Institute of pacific relations, 1953
Buku Teks
Gooch, R.K. (Robert Kent), 1893-1982, author
D. Van Nostrad, 1937
Buku Teks
Stout, Hiram Miller, author
Oxford University Press, 1953
Buku Teks
Laski, Harold J., author
George Allen and Unwin, 1952
Buku Teks
Punnett, R.M., author
Dartmouth, 1994
Buku Teks