Cita APA (7a ed.)

(1982). Countries of the world and their leaders yearbook 1982. Gale Research Co..

Cita Chicago Style (17a ed.)

Countries of the World and Their Leaders Yearbook 1982. Detroit, Mich.: Gale Research Co., 1982.

Cita MLA (9a ed.)

Countries of the World and Their Leaders Yearbook 1982. Gale Research Co., 1982.