TY - BOOK AU - Kononova, M M AU - Greenwood, G A (Tr.) AU - Nowakowski, T Z (Tr.) TI - Soil organic matter: its nature its role in soil formation and in soil fertility U1 - 631.43 21st PY - 1961/// CY - Oxford PB - Pergamon Press KW - Humus; Soil formation; Soil fertility; Humification N1 - Translated from Russian ER -