APA (7th ed.) Citation

Skilling, D. D., & O'Brien, J. T. (1979). How to identify scleroderris canker. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station.

Chicago Style (17th ed.) Citation

Skilling, Darroll D., and James T. O'Brien. How to Identify Scleroderris Canker. [St. Paul, Minn.]: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1979.

MLA (9th ed.) Citation

Skilling, Darroll D., and James T. O'Brien. How to Identify Scleroderris Canker. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1979.