APA (7th ed.) Citation

Hummel, S. S., Foltz-Jordan, S., & Polasky, S. (2012). Natural and cultural history of beargrass (Xerophyllum tenax). U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station : Xerces Society for Invertebrate Conservation.

Chicago Style (17th ed.) Citation

Hummel, Susan Stevens, Sarah Foltz-Jordan, and Sophia Polasky. Natural and Cultural History of Beargrass (Xerophyllum Tenax). Portland, Oregon: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station : Xerces Society for Invertebrate Conservation, 2012.

MLA (9th ed.) Citation

Hummel, Susan Stevens, et al. Natural and Cultural History of Beargrass (Xerophyllum Tenax). U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station : Xerces Society for Invertebrate Conservation, 2012.