APA

Johnson S. L., Comay L. B. & Library of Congress. (2018). The National Wild and Scenic Rivers System: a brief overview. [Washington, D.C.]: Congressional Research Service.

Chicago

Johnson Sandra L, Comay Laura B and Library of Congress. 2018. The National Wild and Scenic Rivers System: a brief overview. [Washington, D.C.]: Congressional Research Service.

Harvard

Johnson S. L., Comay L. B. and Library of Congress. (2018). The National Wild and Scenic Rivers System: a brief overview. [Washington, D.C.]: Congressional Research Service.

MLA

Johnson Sandra L, Comay Laura B and Library of Congress. The National Wild and Scenic Rivers System: a brief overview. [Washington, D.C.]: Congressional Research Service. 2018.