APA (7th ed.) Citation

North Central Forest Experiment Station (Saint Paul, Minn.), & Tyrrell, L. E. (1998). Information about old growth for selected forest type groups in the eastern United States. U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station.

Chicago Style (17th ed.) Citation

North Central Forest Experiment Station (Saint Paul, Minn.), and Lucy E. Tyrrell. Information About Old Growth for Selected Forest Type Groups in the Eastern United States. St. Paul, Minn.: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1998.

MLA (8th ed.) Citation

North Central Forest Experiment Station (Saint Paul, Minn.), and Lucy E. Tyrrell. Information About Old Growth for Selected Forest Type Groups in the Eastern United States. U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1998.