Symposium on Life and the Universe, Osterbrock, D. E., Raven, P. H., & Guth, A. H. (1988). Origins and extinctions: Based on a Symposium on Life and the Universe, held at the National Academy of Sciences, Washington, D.C., April 30, 1986. Yale University Press.
Citação do estilo Chicago (17ª ed.)Symposium on Life and the Universe, Donald E. Osterbrock, Peter H. Raven, e Alan H. Guth. Origins and Extinctions: Based on a Symposium on Life and the Universe, Held at the National Academy of Sciences, Washington, D.C., April 30, 1986. New Haven [Conn.]: Yale University Press, 1988.
Citação MLA (8ª ed.)Symposium on Life and the Universe, et al. Origins and Extinctions: Based on a Symposium on Life and the Universe, Held at the National Academy of Sciences, Washington, D.C., April 30, 1986. Yale University Press, 1988.