APA (7th ed.) Citation

United States. Forest Service, Northeastern Forest Experiment Station (Radnor, Pa.), & Shigo, A. L. (1978). Black walnut on Kansas strip mine spoils: Some observations 25 years after pruning. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

United States. Forest Service, Pa.) Northeastern Forest Experiment Station (Radnor, and Alex L. Shigo. Black Walnut on Kansas Strip Mine Spoils: Some Observations 25 Years After Pruning. Broomall, Pa.: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.

MLA (9th ed.) Citation

United States. Forest Service, et al. Black Walnut on Kansas Strip Mine Spoils: Some Observations 25 Years After Pruning. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.