TY  - BOOK
AU  - Unger, P.W., ed.
AU  - Skimore, E.L., ed.
AU  - van Doren, D.M., ed.
AU  - Whisler, F.D., ed.
TI  - Predicting tillage effects on soil physical properties and processes
T2  - (ASA special publication; no. 44 )
SN  - 9780891180692
PY  - 1982///
CY  - Wisconsin
PB  - American Society of Agronomy
ER  -