TY  - BOOK
AU  - O'Neal,A.M.
AU  - Klingebiel,A.A.
TI  - Your soil, crumbly or cloddy?
T2  - (U.S. Dept. of Agriculture.  Leaflet no. 328.)
AV  - S21 .A483 no. 328
PY  - 1952///]
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Soils
KW  - Aggregation
KW  - Soil physics
ER  -