APA (7th ed.) Citation

Estados Unidos. Congress. (1956). Official congressional directory for the use of The United States Congress. Government Printing Office.

Chicago Style (17th ed.) Citation

Estados Unidos. Congress. Official Congressional Directory for the Use of The United States Congress. Washington: Government Printing Office, 1956.

MLA (9th ed.) Citation

Estados Unidos. Congress. Official Congressional Directory for the Use of The United States Congress. Government Printing Office, 1956.

Warning: These citations may not always be 100% accurate.