APA (7th ed.) Citation

Shigo, A. L., Shortle, W. C., & Ochrymowych, J. (1977). Detection of active decay at groundline in utility poles. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Shigo, Alex L., Walter C. Shortle, and Julian Ochrymowych. Detection of Active Decay at Groundline in Utility Poles. Upper Darby, Pa.: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1977.

MLA (9th ed.) Citation

Shigo, Alex L., et al. Detection of Active Decay at Groundline in Utility Poles. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1977.