APA (7th ed.) Citation

P, B., & MF, S. (1995). The recombinant DNA controversy: Twenty years later. Proceedings of the National Academy of Sciences of the United States of America, 92(20), 9011. https://doi.org/10.1073/pnas.92.20.9011

Chicago Style (17th ed.) Citation

P, Berg, and Singer MF. "The Recombinant DNA Controversy: Twenty Years Later." Proceedings of the National Academy of Sciences of the United States of America 92, no. 20 (1995): 9011. https://doi.org/10.1073/pnas.92.20.9011.

MLA (9th ed.) Citation

P, Berg, and Singer MF. "The Recombinant DNA Controversy: Twenty Years Later." Proceedings of the National Academy of Sciences of the United States of America, vol. 92, no. 20, 1995, p. 9011, https://doi.org/10.1073/pnas.92.20.9011.