Cita APA (7a ed.)

Weeks, M. E. (1956). Discovery of the elements (1956) (6th. ed.). Journal of Chemical Education.

Cita Chicago Style (17a ed.)

Weeks, Mary Elvira. Discovery of the Elements (1956). 6th. ed. Easton, Pa: Journal of Chemical Education, 1956.

Cita MLA (9a ed.)

Weeks, Mary Elvira. Discovery of the Elements (1956). 6th. ed. Journal of Chemical Education, 1956.