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1. Soil Productivity Index: Perdictions of Site Quality for White Spruce Plantations
Soil Productivity Index: Perdictions of Site Quality for White Spruce Plantations
Gale M.r.
Grigal D.F.
Harding R.B.
Soil Science Society of American Journal. Vol.55, no.6. (1991), s. 1701-1708. graf.
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