George Thomas Kurian. (1991). The new book of world rankings. New York: Facts On File.
Style de citation ChicagoGeorge Thomas Kurian. The New Book of World Rankings. New York: Facts On File, 1991.
Style de citation MLAGeorge Thomas Kurian. The New Book of World Rankings. New York: Facts On File, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.