Soils an introduction по Singer, Michael J. (Michael John) 1945-

Spatial analysis framework for community-based watershed management in tropical uplands of the Philippines по Godilano, Esteban Celeste

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Soil science & management по Plaster, Edward J.

Soil science sustainable production and environmental protection по McLaren, R.G, Cameron, K. C. (Keith C.)

Land degradation, soil conservation and risk Evidence from a dynamic model of Philippine upland agriculture по Shively, Gerald E.

Soils an introduction по Singer, Michael J. (Michael John) 1945-

Applied principles of horticultural science по Brown, L. V.

Soils in our environment по Miller, Raymond W.

Soils in our environment по Miller, Raymond W. 1928-

Soil science and sustainable land management in the tropics