APA (7th ed.) Citation

Funk, C. (1941). Study of hormonal factors which influence the production of insulin. Science, 94, 260. https://doi.org/10.1126/science.94.2437.260

Chicago Style (17th ed.) Citation

Funk, C. "Study of Hormonal Factors Which Influence the Production of Insulin." Science 94 (1941): 260. https://doi.org/10.1126/science.94.2437.260.

MLA (9th ed.) Citation

Funk, C. "Study of Hormonal Factors Which Influence the Production of Insulin." Science, vol. 94, 1941, p. 260, https://doi.org/10.1126/science.94.2437.260.