APA (7th ed.) Citation

Kerrod, R. (1991). The World book encyclopedia of science: The heavens (Vol. 1.). World Book,Inc..

Chicago Style (17th ed.) Citation

Kerrod, Robin. The World Book Encyclopedia of Science: The Heavens. Vol. 1. Chicago: World Book,Inc., 1991.

MLA (9th ed.) Citation

Kerrod, Robin. The World Book Encyclopedia of Science: The Heavens. Vol. 1. World Book,Inc., 1991.

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