APA

Congressional Quarterly i., Barnes R. A., . (1971). The Washington lobby. Washington: Congressional Quarterly.

Chicago

Congressional Quarterly inc, Barnes Robert Andrew, . 1971. The Washington lobby. Washington: Congressional Quarterly.

Harvard

Congressional Quarterly i., Barnes R. A., . (1971). The Washington lobby. Washington: Congressional Quarterly.

MLA

Congressional Quarterly inc, Barnes Robert Andrew, . The Washington lobby. Washington: Congressional Quarterly. 1971.