APA (7th ed.) Citation

Z, H., D, K., & M, P. (1977). Sites of contact between lambda operators and lambda repressor. Nucleic acids research, 4(5), 1595. https://doi.org/10.1093/nar/4.5.1595

Chicago Style (17th ed.) Citation

Z, Humayun, Kleid D, and Ptashne M. "Sites of Contact Between Lambda Operators and Lambda Repressor." Nucleic Acids Research 4, no. 5 (1977): 1595. https://doi.org/10.1093/nar/4.5.1595.

MLA (9th ed.) Citation

Z, Humayun, et al. "Sites of Contact Between Lambda Operators and Lambda Repressor." Nucleic Acids Research, vol. 4, no. 5, 1977, p. 1595, https://doi.org/10.1093/nar/4.5.1595.