by John P Sloan
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Container-grown ponderosa pine seedlings...
Effects of nursery fertilizer and irriga...
Effects of seeder design and seed placem...
Oxyfluorfen safe to use in Engelmann spr...
Root dipping of conifer seedlings shows ...
Ponderosa and Lodgepole Pine seedling bu...
The silva of North America
Conifer pests in New Mexico
Catalogue of Canadian plants
Dwarf and slow-growing conifers
Handbuch der Nadelholzkunde
News letter