21
by Mishra, Pramod Kumar, 1945-
Published 1984
22
Published 1960
23
Published 1959
24
by Pearson, Lester B.
Published 1973
25
by Langdon, Frank, 1919-
Published 1973
26
by Birnbaum, Karl E, 1924-
Published 1973
27
by Seton-Watson, Hugh, 1916-1984
Published 1961
28
by Kertesz, Stephen D.
Published 1953
29
by Singh, Lalita Prasad, 1936-
Published 1979
30
by Goldhamer, Herbert
Published 1972
31
by Destler, I. M.
Published 1972
32
Published 1982
33
by Dommen, Arthur J.
Published 1964
34
35
by Bonjour, Edgar, 1898-
Published 1948
36
by Ferrell, Robert H.
Published 1959
37
by Bermudez, Joseph S.
Published 1990
38
by Warner, Denis Ashton, 1917-
Published 1961
39
40