TY  - BOOK
AU  - Chapman,Paul W.
TI  - Conserving soil resources: a guide to better living
AV  - S623 .C42
U1  - 631.45 
PY  - 1950///]
CY  - Atlanta
PB  - T.E. Smith
KW  - Soil conservation
N1  - "Selected references" : p. 340-349
ER  -