TY  - BOOK
AU  - Bear,Firman E.(Firman Edward),1884-1967
AU  - Pritchard,H.Wayne (Harold Wayne),1916-
AU  - Akin,Wallace E.
TI  - Earth: the stuff of life 
SN  - 0806120029
PY  - 1986///
CY  - Norman
PB  - University of Oklahoma Press
KW  - Soils
KW  - United States
KW  - Soils conservation
N1  - p. 303-308
ER  -