Style de citation APA (7e éd.)
(1988). World book of America's presidents: Obs. The president's world, 158 s.. Portraits of the presidents, 288 s (1.vyd.). The World Book,Inc.
Style de citation Chicago (17e éd.)
World Book of America's Presidents: Obs. The President's World, 158 S.. Portraits of the Presidents, 288 S. 1.vyd. Chicago: The World Book,Inc, 1988.
Style de citation MLA (9e éd.)
World Book of America's Presidents: Obs. The President's World, 158 S.. Portraits of the Presidents, 288 S. 1.vyd. The World Book,Inc, 1988.
Attention : ces citations peuvent ne pas être correctes à 100%.