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21
Nash, William A., 530.3-N253t
| McGraw-Hill |
1981
530.3-N253t,
22
Boylestad, Robert., 569.3-B792e
| Prentice-Hill |
1982
569.3-B792e,
23
Nashelsky, Louis, 569.92-N253i
| John Wiley Sons |
1983
569.92-N253i,
24
Nash, John F, 325.9-N251a
| Macmillan Publishing Company |
1984
325.9-N251a,