Leak, W. B., & Tubbs, C. H. (1983). Percent crown cover tables for applying the shelterwood system in New England. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.
Chicago Style (17th ed.) CitationLeak, William B., and C. H. Tubbs. Percent Crown Cover Tables for Applying the Shelterwood System in New England. [Broomall, Pa.]: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1983.
MLA (9th ed.) CitationLeak, William B., and C. H. Tubbs. Percent Crown Cover Tables for Applying the Shelterwood System in New England. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1983.
Warning: These citations may not always be 100% accurate.