Cite
Nucleotide sequences of trpA of Salmonella typhimurium and Escherichia coli: an evolutionary comparison.
MLA
Nichols, B. P., and C. Yanofsky. “Nucleotide Sequences of TrpA of Salmonella Typhimurium and Escherichia Coli: An Evolutionary Comparison.” Proceedings of the National Academy of Sciences of the United States of America, vol. 76, no. 10, Oct. 1979, pp. 5244–48. EBSCOhost, https://doi.org/10.1073/pnas.76.10.5244.
APA
Nichols, B. P., & Yanofsky, C. (1979). Nucleotide sequences of trpA of Salmonella typhimurium and Escherichia coli: an evolutionary comparison. Proceedings of the National Academy of Sciences of the United States of America, 76(10), 5244–5248. https://doi.org/10.1073/pnas.76.10.5244
Chicago
Nichols, B P, and C Yanofsky. 1979. “Nucleotide Sequences of TrpA of Salmonella Typhimurium and Escherichia Coli: An Evolutionary Comparison.” Proceedings of the National Academy of Sciences of the United States of America 76 (10): 5244–48. doi:10.1073/pnas.76.10.5244.