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Fertilizers
Furniss, I. F., (1975)
Canadian chemical industry, 1964
(1964)
Potential uses of mineral resources
Smith, Wesley G., (1969)
[Besprechung von:] Ho, Yhi-min: Agricultural development of Taiwan, 1903-1960. Vanderbilt Univ. Pr. 1966
Yeh, Martin H., (1968)
Yield predictions for 1965 wheat, oats, and barley in Manitoba
Yeh, Martin H., (1965)
The labor market with particular reference to Canadian agriculture
Yeh, Martin H., (1967)