APA (7th ed.) Citation

Markowitz, M. (1981). Circadian rhythms of blood minerals in humans. Science, 213, 672.

Chicago Style (17th ed.) Citation

Markowitz, M. "Circadian Rhythms of Blood Minerals in Humans." Science 213 (1981): 672.

MLA (9th ed.) Citation

Markowitz, M. "Circadian Rhythms of Blood Minerals in Humans." Science, vol. 213, 1981, p. 672.