Nitrogen assimilation of plants / Proceedings of a Symposium, 19-22 September, 1977 - London: Academic Press Inc. Ltd., 1979 - xx, 708p. - Sixth long ashton symposium 1977 . ISBN: 0-12-346360-2 Subjects--Topical Terms: Agriculture Subjects--Index Terms: Reduction Demonstration Universal Decimal Class. No.: 631.811.1(082.2) / L9