Soil organic matter : its nature, its role in soil formation and in soil fertility
Translated from the Russian by T.Z. Nowakowski and G.A. Greenwood.
Oxford ; New York : Pergamon Press, 1961.
450 págs. : ilustraciones ; 24 cm.
Traducción de: Problema pochvennogo gumusa i sovremennye zadachi ego izucheniëiìa (romanized form).