A field guide for on-farm experimentation /
A field guide for on-farm experimentation /
H.J.W. Mutsaers ... [et al.].
- Ibadan, Nigeria : International Institute of Tropical Agriculture, c1997.
- xv, 235 p. : ill., maps ;
"August 1997."
9781311258
Agriculture--Research--On-farm.
Agriculture--Research--On-farm.
S540.O53 / F54 1997
"August 1997."
9781311258
Agriculture--Research--On-farm.
Agriculture--Research--On-farm.
S540.O53 / F54 1997