1
by Rogers, Anne, Pilgrim, David
Published 1996
Macmillan Education UK

2
by Bouza, Anthony V.
Published 1993
Springer US

3
by Van den Haag, Ernest, Conrad, John Phillips
Published 1983
Springer US

4
Published 1994
Springer Netherlands

5
by Mann, Clarence J.
Published 1972
Springer Netherlands

8
Published 1989
Springer Netherlands

9
Published 1979
Springer Netherlands

11
by Filser, Franz
Published 1996
Centaurus Verlag & Media

12
Published 2003
Springer Netherlands

16
by Smith, Alexander B., Berlin, Louis
Published 1988
Springer US

20
Published 1997
Deutscher Universitätsverlag