APA (7th ed.) Citation

GF, B., SG, R., RT, F., & L, B. (1984). Identification of a cloned cytokinin biosynthetic gene. Proceedings of the National Academy of Sciences of the United States of America, 81(15), 4776. https://doi.org/10.1073/pnas.81.15.4776

Chicago Style (17th ed.) Citation

GF, Barry, Rogers SG, Fraley RT, and Brand L. "Identification of a Cloned Cytokinin Biosynthetic Gene." Proceedings of the National Academy of Sciences of the United States of America 81, no. 15 (1984): 4776. https://doi.org/10.1073/pnas.81.15.4776.

MLA (9th ed.) Citation

GF, Barry, et al. "Identification of a Cloned Cytokinin Biosynthetic Gene." Proceedings of the National Academy of Sciences of the United States of America, vol. 81, no. 15, 1984, p. 4776, https://doi.org/10.1073/pnas.81.15.4776.