Conference on Origins of Life Elkridge, Md, Interdisciplinary Communications Program, & Margulis, L. (1973). Proceedings of the fourth Conference on Origins of Life: Chemistry and radioastronomy. Springer-Verlag.
Chicago-referens (17:e uppl.)Conference on Origins of Life Elkridge, Md, Interdisciplinary Communications Program, och Lynn Margulis. Proceedings of the Fourth Conference on Origins of Life: Chemistry and Radioastronomy. New York: Springer-Verlag, 1973.
MLA-referens (8:e uppl.)Conference on Origins of Life Elkridge, Md, et al. Proceedings of the Fourth Conference on Origins of Life: Chemistry and Radioastronomy. Springer-Verlag, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.