Style de citation APA (7e éd.)
(1981). Science year :1981: The World book science annual. Field Enterprises Educational Corporation.
Style de citation Chicago (17e éd.)
Science Year :1981: The World Book Science Annual. Chicago: Field Enterprises Educational Corporation, 1981.
Style de citation MLA (9e éd.)
Science Year :1981: The World Book Science Annual. Field Enterprises Educational Corporation, 1981.
Attention : ces citations peuvent ne pas être correctes à 100%.