APA (7th ed.) Citation

Radwan, M. A., & Shumway, J. S. (1985). Response of Douglas-fir seedlings to nitrogen, sulfur, and phosphorus fertilizers. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.

Chicago Style (17th ed.) Citation

Radwan, M. A., and John S. Shumway. Response of Douglas-fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers. [Portland, Or.]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1985.

MLA (9th ed.) Citation

Radwan, M. A., and John S. Shumway. Response of Douglas-fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1985.