APA (7th ed.) Citation

(1984). Worldmark encyclopedia of the nations (6th ed.). Worldmark Press : J. Wiley, exclusive world distributor.

Chicago Style (17th ed.) Citation

Worldmark Encyclopedia of the Nations. 6th ed. New York: Worldmark Press : J. Wiley, exclusive world distributor, 1984.

MLA (9th ed.) Citation

Worldmark Encyclopedia of the Nations. 6th ed. Worldmark Press : J. Wiley, exclusive world distributor, 1984.

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