APA (7th ed.) Citation

Means, J. E., & Helm, M. E. (1985). Height growth and site index curves for Douglas-fir on dry sites in the Willamette National Forest. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station.

Chicago Style (17th ed.) Citation

Means, Joseph E., and Mary E. Helm. Height Growth and Site Index Curves for Douglas-fir on Dry Sites in the Willamette National Forest. [Portland, Or.]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1985.

MLA (9th ed.) Citation

Means, Joseph E., and Mary E. Helm. Height Growth and Site Index Curves for Douglas-fir on Dry Sites in the Willamette National Forest. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1985.