00606nam a2200157Ia 4500 140224s9999 xx 000 0 und d 631.811:581.5(100)(082.2) L8 International Environmental Symposium on Cycling of Mineral Nutrients in Agricultural Ecosystems, 1st, Amsterdam, May 31-June 4th 1976. Cycling of mineral nutrients in agricultural ecosystems. Amsterdam Elsevier 1978 vii,356p. Reprinted from Agro-Eco systems, vol.4(1/2)pp 10-354 Edited M.J.Frissel. Minerals,Nutrients BK 0 0 0 0 KSD KSD 2014-02-24 0 631.811:581.5(100)(082.2) L8 5254 2014-02-24 00:00:00 2014-02-24 BK 92490 92490