APA (7th ed.) Citation

Graber, R. E., & Leak, W. B. (1992). Seed fall in an old-growth northern hardwood forest. United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Graber, Raymond E., and William B. Leak. Seed Fall in an Old-growth Northern Hardwood Forest. Radnor, Pennsylvania: United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1992.

MLA (9th ed.) Citation

Graber, Raymond E., and William B. Leak. Seed Fall in an Old-growth Northern Hardwood Forest. United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1992.