3
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| Prentice-Hall |
1983
4
Schenk, George H.
| Allyn and Bacon |
1981
5
Gordus, Adon A.
| McGraw-Hill |
1985
6
Schenk, George H.
| Allyn and Bacon |
1981
8
Vogel, Arthur Israel.
| Longman |
1978
10
Skoog, Douglas A.
| Saunders College Pub. |
1982