Methodology for on-farm cropping systems research
Zandstra, H.G.
Methodology for on-farm cropping systems research H.G. Zandstra, E.C. Price, J.A. Litsinger and R.A. Morris - Manila International Rice Research Institute 1981 - vii, 147 p.; 23cm.
631.072 Z16M
Methodology for on-farm cropping systems research H.G. Zandstra, E.C. Price, J.A. Litsinger and R.A. Morris - Manila International Rice Research Institute 1981 - vii, 147 p.; 23cm.
631.072 Z16M
