APA (7th ed.) Citation

Roth, L. E., Nelson, E., & Bynum, H. H. (1972). Phytophthora root rot of Port-Orford cedar. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Roth, L. Evans, Elias Nelson, and Hubert Hartford Bynum. Phytophthora Root Rot of Port-Orford Cedar. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, 1972.

MLA (8th ed.) Citation

Roth, L. Evans, et al. Phytophthora Root Rot of Port-Orford Cedar. U.S. Dept. of Agriculture, Forest Service, 1972.