APA

Krouse W. J., Library of Congress, . (2017). Gun control: federal law and legislative action in the 114th Congress. [Washington, D.C.]: Congressional Research Service.

Chicago

Krouse William J, Library of Congress, . 2017. Gun control: federal law and legislative action in the 114th Congress. [Washington, D.C.]: Congressional Research Service.

Harvard

Krouse W. J., Library of Congress, . (2017). Gun control: federal law and legislative action in the 114th Congress. [Washington, D.C.]: Congressional Research Service.

MLA

Krouse William J, Library of Congress, . Gun control: federal law and legislative action in the 114th Congress. [Washington, D.C.]: Congressional Research Service. 2017.