APA (7th ed.) Citation

Weeks, M. E. (1939). Discovery of the elements. Journal of chemical education.

Chicago Style (17th ed.) Citation

Weeks, Mary Elvira. Discovery of the Elements. [Easton, Pa.]: Journal of chemical education, 1939.

MLA (9th ed.) Citation

Weeks, Mary Elvira. Discovery of the Elements. Journal of chemical education, 1939.

Warning: These citations may not always be 100% accurate.