Pedogenesis and soil Taxonomy. Vol 2, The soil order - L.P. Wilding; N.E. Smeck G.F. Hall (Amsterdam Elsevier, 1983)
L.P. Wilding; N.E. Smeck & G.F. Hall: Pedogenesis and soil Taxonomy. Vol 2, The soil order. Amsterdam. Elsevier, 1983. 0-444-42137-8--(631.44WIL)
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