APA (7th ed.) Citation

French, G. P., & Wertz, A. W. (1961). Trvptophan metabolism in human subjects. Journal of Nutrition, 73, 57.

Chicago Style (17th ed.) Citation

French, G. P., and A. W. Wertz. "Trvptophan Metabolism in Human Subjects." Journal of Nutrition 73 (1961): 57.

MLA (9th ed.) Citation

French, G. P., and A. W. Wertz. "Trvptophan Metabolism in Human Subjects." Journal of Nutrition, vol. 73, 1961, p. 57.