APA

Elsea J., Library of Congress, . (2019). Defense primer: president's constitutional authority with regard to the armed forces. [Washington, D.C.]: Congressional Research Service.

Chicago

Elsea Jennifer, Library of Congress, . 2019. Defense primer: president's constitutional authority with regard to the armed forces. [Washington, D.C.]: Congressional Research Service.

Harvard

Elsea J., Library of Congress, . (2019). Defense primer: president's constitutional authority with regard to the armed forces. [Washington, D.C.]: Congressional Research Service.

MLA

Elsea Jennifer, Library of Congress, . Defense primer: president's constitutional authority with regard to the armed forces. [Washington, D.C.]: Congressional Research Service. 2019.