R.R. Alexander

• Classification of the forest vegetation of Colorado by habitat type and community type
• Classification of the forest vegetation of Wyoming
• Classification of the forest vegetation on the national forests of Arizona and New Mexico
• Diameter and basal area distributions in old-growth spruce-fir stands in Colorado
• Engelmann spruce seed dispersal in the central Rocky Mountains
• Engelmann spruce seed production on the Fraser Experimental Forest, Colorado
• Production of Engelmann spruce seed, Fraser Experimental Forest, Colorado: a 5-year progress report
• Seed: seedling ratios of Engelmann spruce after clearcutting in the Central Rocky Mountains
• Silvical characteristics of subalpine fir
• The Fraser Experimental Forest, Colorado