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| Utgitt
| [Philadelphia] : University of Pennsylvania Press , 1976
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| Omfang
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| Opplysninger
| "Based, in part, upon concepts and techniques presented at the International Conference on Biological Water Quality Improvement Alternatives, held on March 3, 4, and 5, 1975, at the University of Pennsylvania."
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| Emner
| |
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| ISBN
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