32
33
Margaret McWilliams.Holly Heller
| Prentice Hall |
2003
34
Edward E.Sanders/Timothy H.Hill
| Prentice Hall |
2001
35
Nykiel, Ronald A.
| Prentice Hall |
2005
37
Raphael E. Serebreny
| Prentice Hall |
1988
40
Barbara G. Cox
| Prentice Hall |
2004