1
Barbour, John D.
| University of Chicago |
1985
2
Barbour, John D.
| University of Chicago |
1989
3
Barbour, John
| University of Chicago |
1990
5
Barbour, John D.
| University of Chicago |
2002
6
Barbour, John Humphrey
| E & JB Young |
1887
8
Barbour, John D.
| Scholars Press |
2011