Humic substances of soils and general theory of humification
Orlov, D S
Humic substances of soils and general theory of humification - New Delhi: Oxford & IBH Publishing CO. PVT. LTD., 1992 - viii, 323p.
8120409183
Agriculture
Transformation Nuclear magnetic
631.4: 547.992 / N5
Humic substances of soils and general theory of humification - New Delhi: Oxford & IBH Publishing CO. PVT. LTD., 1992 - viii, 323p.
8120409183
Agriculture
Transformation Nuclear magnetic
631.4: 547.992 / N5