2121
by Gosling, Joanna
Published 1990
Macmillan Education UK

2122
by Angell, Ian O.
Published 1981
Macmillan Education UK

2123
Published 1992
Macmillan Education UK

2124
by Angell, Ian O., Jones, Brian J.
Published 1983
Macmillan Education UK

2125
by Angell, I., Tsoubelis, Dimitrios
Published 1992
Macmillan Education UK

2131

2132
Published 1987
Springer Berlin Heidelberg

2136
by Penfold, David
Published 2000
Springer London

2137
by Kiehn, Anja, Titzmann, Ina
Published 1998
Springer Berlin Heidelberg