3
Phillips, Hugh D.
| Westview Press |
1992
4
Palmer, R. R.
| Princeton University Press |
1989
5
Cohen, Stephen F.
| Vintage Books |
1975
6
Phillips, Hugh D.
| Westview Press |
1992
7
Jacobs, Dan N.
| Harvard University Press |
1981
8
Palmer, R. R.
| Princeton University Press |
1989