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Hoffmann, Erik P.
| Pergamon Press |
1982
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Landau, L. D.
| Pergamon Press |
1976
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Hoffmann, Erik P.,
| Pergamon Press |
1982
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Krashen, Stephen D.
| Pergamon Press |
1981
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Grossberg, Stephen,
| Pergamon Press |
1989
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Bennett, John William,
| Pergamon Press |
1976
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Romanczyk, Raymond G.
| Pergamon Press |
1986
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Gatchel, Robert J.,
| Pergamon Press |
1979
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Hammond, P.
| Pergamon Press |
1986