Alwis, K. A. De
Handbook of the soils of Sri Lanka volume II 1972 - 75 - Colombo Department of irrigation - 97 p. ill. 21 cm.
Photocopy
Soil microbiology
Sri Lanka
631.46 / SOI
Handbook of the soils of Sri Lanka volume II 1972 - 75 - Colombo Department of irrigation - 97 p. ill. 21 cm.
Photocopy
Soil microbiology
Sri Lanka
631.46 / SOI