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Imports and plantings of high-yielding varieties of wheat and rice in the less developed nations
Dalrymple, Dana G., (1972)
Dalrymple, Dana G., (1971)
Tunisia: the Wheat Development Program
Johnson, William Frederick, (1983)
The adoption of high-yielding wheats
Purvis, Malcolm J., (1976)
New sources of growth in a stagnant smallholder economy in Nigeria : the Oil Palm Rehabilitation Scheme
Purvis, Malcolm J., (1970)
Recreational Horse Ownership in Minnesota: A Case Study of Anoka County
Otto, Daniel M., (1978)