APA (7th ed.) Citation

Johnson, C. G. (1998). Common plants of the inland Pacific Northwest. USDA Forest Service, Pacific Northwest Region.

Chicago Style (17th ed.) Citation

Johnson, Charles G. Common Plants of the Inland Pacific Northwest. [Portland, Or.]: USDA Forest Service, Pacific Northwest Region, 1998.

MLA (9th ed.) Citation

Johnson, Charles G. Common Plants of the Inland Pacific Northwest. USDA Forest Service, Pacific Northwest Region, 1998.