Fanning, Delvin Seymour
Soil morphology, genesis and classification - New York John Wiley and Sons 1990 - 394
047150310X
Soil formation
Soil structure
631.4/FAN
Soil morphology, genesis and classification - New York John Wiley and Sons 1990 - 394
047150310X
Soil formation
Soil structure
631.4/FAN