APA (7th ed.) Citation

Little, E. L., Little, S., & Doolittle, W. T. (1967). Natural hybrids among pond, loblolly, and pitch pines. Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Little, Elbert L., Silas Little, and Warren T. Doolittle. Natural Hybrids Among Pond, Loblolly, and Pitch Pines. Upper Darby, Pa.: Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1967.

MLA (9th ed.) Citation

Little, Elbert L., et al. Natural Hybrids Among Pond, Loblolly, and Pitch Pines. Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1967.