APA (7th ed.) Citation

Walters, R. S., & Shigo, A. L. (1978). Tapholes in sugar maples: What happens in the tree. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Walters, Russell S., and Alex L. Shigo. Tapholes in Sugar Maples: What Happens in the Tree. Broomall, Pa.: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.

MLA (9th ed.) Citation

Walters, Russell S., and Alex L. Shigo. Tapholes in Sugar Maples: What Happens in the Tree. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.