Recent Aspects of Nitrogen Metabolism in Plants First Long Ashton Symposium 1967 - London : Academic Press, 1968 - Proceedings of a Symposium held at Long Ashton Research Station ; University of Bristol ; 18-19 April ; 1967 . Standard No.: DEX-M1856 Subjects--Topical Terms: TRANSFORMACIONMETABOLISMONITROGENOPLANTA Universal Decimal Class. No.: 581.13