Waddams, A. L. (1969). Chemicals from petroleum: An introductory survey (2d ed.). Chemical Pub. Co..
Chicago Style aipamenaWaddams, Austen Lawrence. Chemicals from Petroleum: An Introductory Survey. 2d ed. New York: Chemical Pub. Co., 1969.
MLA aipamenaWaddams, Austen Lawrence. Chemicals from Petroleum: An Introductory Survey. 2d ed. Chemical Pub. Co., 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.