by Iowa State University
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Goals and values in agricultural policy
Economic development of agriculture
Official Publication, Volume 18, Issue 9
The outlook for graduate study
Labor mobility and population in agricul...
Journal of business and technical commun...
Fossil fuels
Coal Processing and Utilization
Environmental assessment of coal cleanin...
Coal-pyrite flotation : a modified techn...
Coal-pyrite flotation in concentrated pu...
Designing the coal preparation plant of ...