APA (7th ed.) Citation

Perry, D. A., & Lotan, J. E. (1977). Opening temperatures in serotinous cones of lodgepole pine. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station.

Chicago Style (17th ed.) Citation

Perry, David A., and James E. Lotan. Opening Temperatures in Serotinous Cones of Lodgepole Pine. Ogden, Utah: Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1977.

MLA (9th ed.) Citation

Perry, David A., and James E. Lotan. Opening Temperatures in Serotinous Cones of Lodgepole Pine. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1977.