APA   Click to copy
Black, K., Liu, P., Xu, L., Doubleday, C., & Houk, K. N. (2012). Dynamics, transition states, and timing of bond formation in Diels–Alder reactions. Proceedings of the National Academy of Sciences of the United States of America, 109(32), 12860–12865. https://doi.org/10.1073/pnas.1209316109

Chicago/Turabian   Click to copy
Black, Kersey, Peng Liu, Lai Xu, Charles Doubleday, and Kendall N. Houk. “Dynamics, Transition States, and Timing of Bond Formation in Diels–Alder Reactions.” Proceedings of the National Academy of Sciences of the United States of America 109, no. 32 (2012): 12860–12865.

MLA   Click to copy
Black, Kersey, et al. “Dynamics, Transition States, and Timing of Bond Formation in Diels–Alder Reactions.” Proceedings of the National Academy of Sciences of the United States of America, vol. 109, no. 32, 2012, pp. 12860–65, doi:10.1073/pnas.1209316109.

@article{kersey2012a,
  title = {Dynamics, transition states, and timing of bond formation in Diels–Alder reactions},
  year = {2012},
  issue = {32},
  journal = {Proceedings of the National Academy of Sciences of the United States of America},
  pages = {12860-12865},
  volume = {109},
  doi = {10.1073/pnas.1209316109},
  author = {Black, Kersey and Liu, Peng and Xu, Lai and Doubleday, Charles and Houk, Kendall N.}
}