Lockard, C. R., Putnam, J. A., & Carpenter, R. D. (1950). Log defects in southern hardwoods. U.S. Dept. of Agriculture, Southern Forest Experiment Station, Forest Service.
Chicago Style (17th ed.) CitationLockard, C. R., J. A. Putnam, and Roswell D. Carpenter. Log Defects in Southern Hardwoods. Washington, D.C.: U.S. Dept. of Agriculture, Southern Forest Experiment Station, Forest Service, 1950.
MLA (9th ed.) CitationLockard, C. R., et al. Log Defects in Southern Hardwoods. U.S. Dept. of Agriculture, Southern Forest Experiment Station, Forest Service, 1950.
Warning: These citations may not always be 100% accurate.