TY  - BOOK
AU  - Clarke,George Robin
AU  - Beckett,Philip
TI  - The study of the soil of the  field / 
SN  - 0198541171
U1  - 824.9 
PY  - 1971///
CY  - Oxford : 
PB  - Clarendon Press, 
KW  - Soil surveys
N1  -  Includes bibliographical references (p. [139]-141)
ER  -