AGRIS - Sistema Internacional para la Ciencia y Tecnología Agrícola

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Nutritional aspects of forest soil structure

1989

Hildebrand, E.E. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany, F.R.).)

ZB MED Nutrition. Environment. Agriculture - Germany





Urban discharges and receiving water quality impacts

1989

Ellis, J. B. (J Bryan)

National Agricultural Library - United States of America

Air pollution injury to vegetation

1989

Taylor, H. J. | Ashmore, M. R. | Bell, J. N. B.

National Agricultural Library - United States of America

Watershed 89

1989

Wheeler, D. | Richardson, Mervyn | Bridges, J.

National Agricultural Library - United States of America