  Monitoring Ecological Impacts Concepts and Practice in Flowing Waters (Paperback) → Hardcover ISBN-13: 9780521065290 ISBN-10: 0521065291 Genre: Science & Math ?  Monitoring Ecological Impacts Concepts and Practice in Flowing Waters (Hardcover) → Paperback ISBN-13: 9780521771573 ISBN-10: 0521771579 Genres: Science & Math, Engineering & Transportation, Outdoors & Nature ? |
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