2
Bly, Robert W.
| McGraw-Hill |
1982
3
Mancuso, Joseph C.
| Addison-Wesley |
1990
4
Katz, Michael Jay,
| Yale University Press |
1985
5
Huckin, Thomas N.
| McGraw-Hill |
1983
6
Pauley, Steven E.
| Houghton Mifflin |
1973