APA (7th ed.) Citation

Smith, S. L., Borys, R. R., & Shea, P. J. (2009). Jeffrey pine beetle (Rev. June 2009.). USDA Forest Service, Pacific Northwest Region.

Chicago Style (17th ed.) Citation

Smith, Sheri L., Robert R. Borys, and Patrick J. Shea. Jeffrey Pine Beetle. Rev. June 2009. Portland, Or.: USDA Forest Service, Pacific Northwest Region, 2009.

MLA (9th ed.) Citation

Smith, Sheri L., et al. Jeffrey Pine Beetle. Rev. June 2009. USDA Forest Service, Pacific Northwest Region, 2009.