APA

(1973). The world almanac and book of facts 1974. New York: Newspaper Enterprise Association.

Chicago

1973. The world almanac and book of facts 1974. New York: Newspaper Enterprise Association.

Harvard

(1973). The world almanac and book of facts 1974. New York: Newspaper Enterprise Association.

MLA

The world almanac and book of facts 1974. New York: Newspaper Enterprise Association. 1973.