TY  - BK
TI  - Conservation tillage pamphlets and brochures:  Directory 1987, a special project of the National Association of Conservation Districts
PY  - 1987///
CY  - Wayne, IN (USA)
PB  - Conservation Tillage Information Center, 
KW  - Information flow
KW  - Soil conservation
KW  - Tillage
KW  - AGROVOC
ER  -