by George T. Ferrell
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Ten-year risk-rating systems for Califor...
Growth classification systems for red fi...
Gouty pitch midge damage to ponderosa pi...
Weather and tree growth associated with ...
Black pineleaf scale
Differential susceptibility of white fir...
Hans Christian Andersen's The Fir Tree
Histoire des arbres forestiers de l'Amér...
Levels-of-growing-stock cooperative stud...
News letter
Charleston