APA (7th ed.) Citation

Curtis, R. O., Clendenen, G. W., & Henderson, J. A. (2000). True fir-hemlock spacing trials: Design and first results. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.

Chicago Style (17th ed.) Citation

Curtis, Robert O., Gary W. Clendenen, and Jan A. Henderson. True Fir-hemlock Spacing Trials: Design and First Results. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

MLA (9th ed.) Citation

Curtis, Robert O., et al. True Fir-hemlock Spacing Trials: Design and First Results. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.