APA (7th ed.) Citation

Tubbs, C. H. (1977). Root-crown relations of young sugar maple and yellow birch. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station.

Chicago Style (17th ed.) Citation

Tubbs, Carl H. Root-crown Relations of Young Sugar Maple and Yellow Birch. St. Paul, Minn.: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1977.

MLA (9th ed.) Citation

Tubbs, Carl H. Root-crown Relations of Young Sugar Maple and Yellow Birch. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1977.