Frissel M J Ed. Proceeding on cycling of mineral nutrients in agricultural ecosystems - Amsterdam Elsevier Scientific 1978 - vii, 356p. cm. ill - Developments in agricultural and managed - forest ecology; 3 . Standard No.: 52428 Source: Textual Subjects--Topical Terms: Soil-EcosystemsAgriculture Dewey Class. No.: J:1-95p1,N76, L8