APA

Sheikh P. A., Ward E. H., Crafton R. E. & Library of Congress. (2019). Final rules changing Endangered Species Act regulations. [Washington, D.C.]: Congressional Research Service.

Chicago

Sheikh Pervaze A, Ward Erin H, Crafton R Eliot and Library of Congress. 2019. Final rules changing Endangered Species Act regulations. [Washington, D.C.]: Congressional Research Service.

Harvard

Sheikh P. A., Ward E. H., Crafton R. E. and Library of Congress. (2019). Final rules changing Endangered Species Act regulations. [Washington, D.C.]: Congressional Research Service.

MLA

Sheikh Pervaze A, Ward Erin H, Crafton R Eliot and Library of Congress. Final rules changing Endangered Species Act regulations. [Washington, D.C.]: Congressional Research Service. 2019.