APA (7th ed.) Citation

Weissman, P. R., McFadden, L. A., & Johnson, T. V. (1999). Encyclopedia of the solar system. Academic Press.

Chicago Style (17th ed.) Citation

Weissman, Paul Robert, Lucy-Ann Adams McFadden, and Torrence V. Johnson. Encyclopedia of the Solar System. San Diego: Academic Press, 1999.

MLA (8th ed.) Citation

Weissman, Paul Robert, et al. Encyclopedia of the Solar System. Academic Press, 1999.