Cita APA (7a ed.)
Library of Congress & Library of Congress. Public Affairs Office. (1972). Library of Congress information bulletin. Library of Congress.
Cita Chicago Style (17a ed.)
Library of Congress y Library of Congress. Public Affairs Office. Library of Congress Information Bulletin. [Washington, D.C.]: Library of Congress, 1972.
Cita MLA (9a ed.)
Library of Congress y Library of Congress. Public Affairs Office. Library of Congress Information Bulletin. Library of Congress, 1972.
Precaución: Estas citas no son 100% exactas.