APA (7th ed.) Citation

Galligan, W. L., Gerhards, C. C., & Ethington, R. L. (1979). Evolution of tensile design stresses for lumber. Forest Products Laboratory.

Chicago Style (17th ed.) Citation

Galligan, W. L., C. C. Gerhards, and Robert L. Ethington. Evolution of Tensile Design Stresses for Lumber. Madison, Wis.: Forest Products Laboratory, 1979.

MLA (9th ed.) Citation

Galligan, W. L., et al. Evolution of Tensile Design Stresses for Lumber. Forest Products Laboratory, 1979.