PT  - JOURNAL ARTICLE
AU  - Harold R. Cosper
TI  - Soil suitability for conservation tillage
DP  - 1983 May 01
TA  - Journal of Soil and Water Conservation
PG  - 152--155
VI  - 38
IP  - 3
4099  - http://www.jswconline.org/content/38/3/152.short
4100  - http://www.jswconline.org/content/38/3/152.full