Principles for progress in world agriculture
Harrar, J. George
Principles for progress in world agriculture by J. George Harrar - New York Rockefeller Foundation 1966 - 16 p.
Agriculture
63(1) / H236P
Principles for progress in world agriculture by J. George Harrar - New York Rockefeller Foundation 1966 - 16 p.
Agriculture
63(1) / H236P