by P. H Cochran
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Thirty-five-year growth of ponderosa pin...
Thirty-five-year growth of thinned and u...
Gross yields for even-aged stands of Dou...
Examples of mortality and reduced annual...
Growth and mortality of ponderosa pine p...
Growth of lodgepole pine thinned to vari...
Nitrogen in Agricultural Landscape
Lactic Acid Fermentation of Human Excret...
The European nitrogen assessment
Response of Douglas-fir seedlings to nit...
Pesticides and Nitrogen Cycle Nature and...
Natural gas