1
Bergman, David,
| D.C. Heath |
1983
2
Boyer, Paul S.
| D.C. Heath and Co. |
1996
3
Boyer, Paul S0
| D.C. Heath and Co. |
1996
4
Dale, Nell B.
| D.C. Heath |
1985
5
Edwards, Richard,
| D.C. Heath |
1975
6
Gebhardt, Richard C.
| D.C. Heath |
1989
7
Henderson, J. Vernon.
| D.C. Heath |
1991
9
Orlich, Donald C.
| D.C. Heath |
1994