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1by Whitfield, W. A. D. (William Arthur Douglas), 1940-“...Soil Survey of England and Wales,...”
Published 1971
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2by Whitfield, W. A. D. (William Arthur Douglas), 1940-“...Soil Survey of England and Wales,...”
Published 1974
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3by Whitfield, W. A. D. (William Arthur Douglas), 1940-“...Soil Survey of England and Wales,...”
Published 1975
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4by Whitfield, W. A. D. (William Arthur Douglas), 1940-“...Soil survey of England and Wales,...”
Published 1980
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5by Whitfield, W. A. D. (William Arthur Douglas), 1940-“...Soil Survey of England and Wales,...”
Published 1977
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6Published 1986“...Soil Survey of England and Wales,...”
Book