Humic acids properties of an argiudoll soil under two tillage systems / R.A. Rosell, A.E. Andriulo, M.Schnitzer, M.B. Crespo, A.M. Miglierina. — 1989. — p. : il. ; 26 cm.
Science of the total environment — v. 81-81 pp. 391-400
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