000
00274nam a2200097Ia 4500
001
26524
008
170722s9999 xx 000 0 und d
100
_a
Kononova, Mm
245
_a
Soil organic matter
_b
Its nature, its role in soil formation and in soil fetility /
942
_c
GEN
999
_c
59394
_d
59394