APA (7th ed.) Citation

Christensen, E. M., & Hunt, M. J. (1965). A bibliography of Engelmann spruce. Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Christensen, Earl Martin, and Melvin J. Hunt. A Bibliography of Engelmann Spruce. Ogden, Utah: Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1965.

MLA (9th ed.) Citation

Christensen, Earl Martin, and Melvin J. Hunt. A Bibliography of Engelmann Spruce. Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1965.