1
Bertsch , Gary K., 349.9-B551e
| Routledge |
1999
349.9-B551e,
2
Bertsch, Gary K., 349.9-B551d
| Routledge |
1999
349.9-B551d,
3
Bertsch, Gary K, 301.53-B551c
| W. H. Freeman and Company |
1976
301.53-B551c,
4
Bertsch, Gary K, 301.53-B551c
| W. H. Freeman and Company |
1976
301.53-B551c,
5
Bertsch, Gary K, 301.53-B548p
| Dellen Publishing |
1986
301.53-B548p,
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