11
Francis, Gill
| Harper Collins Publishers |
1998
12
Murphy, Raymond.
| Cambridge University Press |
2001
14
Azar, Betty Schrampfer
| Azar, Betty Schrampfer |
1992
15
Azar, Betty Schrampfer
| Azar, Betty Schrampfer |
1992
20
Greenbaum, Sidney
| Greenbaum, Sidney |
1990