by Sprague, Milton A.; Triplett, Glover B.;
Year: c1986., Callno: 631.58 NOT
Book
by International Soil Tillage Research Organization. Conference (8th : 1979 : University of Hohenheim);
Year: 1979]., Callno: 05:631.51
Conference proceedings
by Agricultural Technologists of Australasia.;
Year: 1983., Callno: 631.58(94) CON [Q]
Book
by Soil Conservation Society of America.; Crosson, Pierre R.;
Year: c1981., Callno: 631.51 CRO
Book
by Kamel, T. R.; Grevis-James, I. W.;
Year: 1977., Callno: 631.51:030.8 GRE [Q]
Book
by American Society of Agricultural Engineers.; Soil Conservation Society of America.; American Society of Agronomy.;
Year: 1967, Callno: 631.51 TIL [Q]
Conference proceedings
by International Soil Tillage Research Organization. Conference (12th : 1991 : Ibadan, Nigeria); International Soil Tillage Research Organization.;
Year: [1991], Callno: 05:631.51
Conference proceedings
by Young, H. M.; Phillips, S. H.;
Year: 1973., Callno: 631.51 PHI [Q]
Book