Cita APA

(1982). ULRICH'S international periodicals directory (21. ed.). New York: R. R. Bowker.

Citación estilo Chicago

ULRICH'S International Periodicals Directory. 21. ed. New York: R. R. Bowker, 1982.

Cita MLA

ULRICH'S International Periodicals Directory. 21. ed. New York: R. R. Bowker, 1982.