1
by Bauer, Péter T.
Cambridge, Mass. : Harvard Univ. Pr., 1981
Book
6
9
by Nohlen, Dieter
München [u.a.] : Piper, 1987
Book
11
by Fritsch, Bruno
Köln [u.a.] : Kiepenheuer & Witsch, 1968
Book
12
16
by Indian Statistical Institute
London Calcutta : Asia Publ. House [u.a.], 1963
Book
18
by Salowsky, Heinz
Köln : Deutscher Instituts-Verlag, 1985
Book