APA (7th ed.) Citation

Smiley, E. T., Graham, A. W., & Scott Cullen. (2002). Tree lightning protection systems. International Society of Arboriculture.

Chicago Style (17th ed.) Citation

Smiley, E. Thomas, A. William Graham, and Scott Cullen. Tree Lightning Protection Systems. Champaign, Il: International Society of Arboriculture, 2002.

MLA (9th ed.) Citation

Smiley, E. Thomas, et al. Tree Lightning Protection Systems. International Society of Arboriculture, 2002.