Paperback. Condizione: Very Good+. 419 pages. A comprehensive appraisal of the world's wetlands to explain their evolution, occurence and composition and their physical and biological dynamics; second, to consider the impact of agriculture, industry, urbanization and recreation; and third to examine what steps should be taken to manage and preserve them. 1" closed tear to bottom edge of rear cover by spine.; 6 5/8 x 9 3/8 ".