1995 - The Freshwater Imperative a Research Agenda (Hardcover) → Paperback ISBN-13: 9781559634069 ISBN-10: 1559634065 ? 1995 - The Freshwater Imperative a Research Agenda (Paperback) → Hardcover ISBN-13: 9781559634076 ISBN-10: 1559634073 Genres: Business & Money, Science & Math, Engineering & Transportation, Outdoors & Nature ? 1994 - Groundwater Ecology [Aquatic Ecology] (Hardcover) ISBN-13: 9780122821103 ISBN-10: 0122821106 Genres: Science & Math, Engineering & Transportation, Outdoors & Nature, Substores ? |