APA (7th ed.) Citation

McDonald, K. A., Cox, R. G., & Bulgrin, E. H. (1969). Locating lumber defects by ultrasonics. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.

Chicago Style (17th ed.) Citation

McDonald, Kent A., Roger G. Cox, and Erwin H. Bulgrin. Locating Lumber Defects by Ultrasonics. Madison, Wisconsin: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1969.

MLA (9th ed.) Citation

McDonald, Kent A., et al. Locating Lumber Defects by Ultrasonics. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1969.