22
Chadwick, Henry
| Cambridge University Press |
2001
23
Phillips, D. Z.
| Macmillan Press LTD |
1999
24
Heflin, Wilma H.
| UMI |
1997
25
Kaplan, Steven J.
| The Edwin Mellen Press,Ltd. |
1996
26
Ellacuria, Ignacio
| Orbis Books |
1993