Research, education and extension in agriculture
Aston, J., Lord, R.F.
Research, education and extension in agriculture by J. Ashton and R.F. Lord - Edinburgh Oliver and Boyd 1969 - 186 p.
Agricultural Extension
63(071.7) / A 828 R
Research, education and extension in agriculture by J. Ashton and R.F. Lord - Edinburgh Oliver and Boyd 1969 - 186 p.
Agricultural Extension
63(071.7) / A 828 R