TY  - BK
AU  - Hinman,H.R.
AU  - Engle,C.F.
AU  - Erickson,D.H.
AU  - Willett,G.S.
TI  - Cost of alternative tillage practices, Central Whitman County, Washington
T2  - Extension Bulletin - Washington State University, Cooperative Extension Service (USA).
SN  - 0096-6568
U1  - 82-786140 
PY  - 1981///
KW  - Cultivation
KW  - AGROVOC
KW  - Farm organization and management
KW  - Washington
ER  -