APA (7th ed.) Citation

Washington Natural Heritage Program. Endangered, threatened and sensitive vascular plants of Washington. Washington Natural Heritage Program.

Chicago Style (17th ed.) Citation

Washington Natural Heritage Program. Endangered, Threatened and Sensitive Vascular Plants of Washington. [Olympia, Wash.]: Washington Natural Heritage Program.

MLA (8th ed.) Citation

Washington Natural Heritage Program. Endangered, Threatened and Sensitive Vascular Plants of Washington. Washington Natural Heritage Program.

Warning: These citations may not always be 100% accurate.