Cita APA (7th ed.)
Weissman, P. R., McFadden, L. A., & Johnson, T. V. (1999). Encyclopedia of the solar system. Academic Press.
Cita Chicago (17th ed.)
Weissman, Paul Robert, Lucy-Ann Adams McFadden, i T. V. Johnson. Encyclopedia of the Solar System. San Diego: Academic Press, 1999.
Cita MLA (9th ed.)
Weissman, Paul Robert, et al. Encyclopedia of the Solar System. Academic Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.