Quantitative and numerical methods in soil classification and surveys
Webster, R. Quantitative and numerical methods in soil classification and surveys / R.Webster. - - Oxford : Clarendon Press, 1977 269 p. : ill., figures, maps
. - (Monographs on Soil Survey )
Includes references and index
019854512 6 : 12.50 pds
* * Soil - * Soil Science - Soil and Land use surveys - * Series