APA (7th ed.) Citation

Griffin, L. E., & Day, J. (1936). Regal lily as a source of root-tip material. Science, 84, 295. https://doi.org/10.1126/science.84.2178.295

Chicago Style (17th ed.) Citation

Griffin, L. E., and J. Day. "Regal Lily as a Source of Root-tip Material." Science 84 (1936): 295. https://doi.org/10.1126/science.84.2178.295.

MLA (9th ed.) Citation

Griffin, L. E., and J. Day. "Regal Lily as a Source of Root-tip Material." Science, vol. 84, 1936, p. 295, https://doi.org/10.1126/science.84.2178.295.