APA (7th ed.) Citation

Hart, G. E., Leonard, R. E., & Pierce, R. S. (1962). Leaf fall, humus depth and soil frost in a northern hardwood forest. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Hart, George Emerson, R. E. Leonard, and Robert Stanley Pierce. Leaf Fall, Humus Depth and Soil Frost in a Northern Hardwood Forest. Upper Darby, PA.: Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1962.

MLA (9th ed.) Citation

Hart, George Emerson, et al. Leaf Fall, Humus Depth and Soil Frost in a Northern Hardwood Forest. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1962.