APA (7e ed.) Bronvermelding
(1987). Science year :1988: The World book science annual. Field Enterprises Educational Corporation.
Chicago (17e ed.) Bronvermelding
Science Year :1988: The World Book Science Annual. Chicago: Field Enterprises Educational Corporation, 1987.
MLA (9e ed.) Bronvermelding
Science Year :1988: The World Book Science Annual. Field Enterprises Educational Corporation, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.