1
Published 1993
2
by De Mauny, Erik
Published 1969
3
by Vogel, Ezra F.
Published 1979
4
Published 1970
5
6
Published 1969
7
Published 1978
8
Published 1971
9
Published 1961
10
by Price, Daniel O.
Published 1969
11
Published 1983
12
by Amalrik, Andrei, 1938-
Published 1970
13
by Fraser,Thomas M
Published 1960
14
by Miller, Jack, 1912-
Published 1969
15
by Srinivas, M. N
Published 1966
16
Published 1970
17
Published 1977
18
Published 1968
19
by Needler, Martin C.
Published 1968
20
Published 1973