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Guiding principles for water quality and aquatic ecosystem monitoring
New dosage tables
The effect of phloem thickness on heterozygosity in laboratory reared mountain pine beetles
A Job with the Forest Service : a guide to nonprofessional employment
Summary of the Conference on Extension Experiences Around the World, May 16 to 20, 1949
Population surveys and analysis of fall and winter movements of arctic grayling in the Big Hole River : 1991 annual report
Growth of immature stands of ponderosa pine in the Black Hills
Silvical characteristics of sweet birch
A chemical monitoring program of the explosion products in underwater explosion tests
The optimization of energy recovery systems