1
by Mathisen, Trygve
Published 1971
2
Published 1972
3
Published 1952
4
by Brodie, Bernard, 1910-
Published 1974
5
Published 1957
6
by Holsti, K. J, 1935-
Published 1972
7
by Jacob, Philip E.
Published 1965
8
Published 1965
9
by Ikle, Fred Charles
Published 1964
10
by Burton, J. W.
Published 1968
11
by Padelford, Norman J, 1903-
Published 1954
12
13
Published 1970
14
by Aron, Raymond
Published 1962
15
by Crowley, D. W.
Published 1958
16
Published 1972
17
by Satow, Ernest Mason, 1843-1929
Published 1964
18
by Padelford, Norman J.
Published 1962
19
by Gross, Feliks
Published 1966
20
Published 1959