APA

Straus J. R., Library of Congress, . (2018). Sergeant at Arms and Doorkeeper of the Senate: legislative and administrative duties. [Washington, D.C.]: Congressional Research Service.

Chicago

Straus Jacob R, Library of Congress, . 2018. Sergeant at Arms and Doorkeeper of the Senate: legislative and administrative duties. [Washington, D.C.]: Congressional Research Service.

Harvard

Straus J. R., Library of Congress, . (2018). Sergeant at Arms and Doorkeeper of the Senate: legislative and administrative duties. [Washington, D.C.]: Congressional Research Service.

MLA

Straus Jacob R, Library of Congress, . Sergeant at Arms and Doorkeeper of the Senate: legislative and administrative duties. [Washington, D.C.]: Congressional Research Service. 2018.