APA (7th ed.) Citation

Barrett, J. W. (1966). A record of ponderosa pine seed flight. Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Barrett, James W. A Record of Ponderosa Pine Seed Flight. Portland, Or.: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1966.

MLA (8th ed.) Citation

Barrett, James W. A Record of Ponderosa Pine Seed Flight. Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1966.