APA Style

et.al, J. (1995). Chemical Evolution : Self Organization of the macromolecules of life: Proceedings of the trieste conference on chemical evolution and origin of life. 25-29 October 1993 . Virginia: A. DEEPAK PUBLISHING.

MLA Style

et.al, Julian.. "Chemical Evolution : Self Organization of the macromolecules of life: Proceedings of the trieste conference on chemical evolution and origin of life. 25-29 October 1993". Virginia: A. DEEPAK PUBLISHING, 1995. Buku.