Weeks, M. E. (1956). Discovery of the elements (1956) (6th. ed.). Journal of Chemical Education.
Chicago-referens (17:e uppl.)Weeks, Mary Elvira. Discovery of the Elements (1956). 6th. ed. Easton, Pa: Journal of Chemical Education, 1956.
MLA-referens (9:e uppl.)Weeks, Mary Elvira. Discovery of the Elements (1956). 6th. ed. Journal of Chemical Education, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.