LEADER 00000nam 2200193 a 4500 001 0935734244 003 UkHlHU 007 t 008 981030s1991 IOW 000 020 0935734244 040 UkHlHU 100 1 Moldenhauer, W C. 245 10 Development of conservation farming on hillslopes. 260 Iowa City :|bSoil and Water Conservation Society,|c1991. 300 332 p. 650 0 Hill farming|vCongresses. 650 0 Conservation tillage|vCongresses. 936 UCS bib. record
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