APA (7th ed.) Citation

Lipton, R. J. (1995). DNA solution of hard computational problems. Science, 268, 542. https://doi.org/10.1126/science.7725098

Chicago Style (17th ed.) Citation

Lipton, Richard J. "DNA Solution of Hard Computational Problems." Science 268 (1995): 542. https://doi.org/10.1126/science.7725098.

MLA (9th ed.) Citation

Lipton, Richard J. "DNA Solution of Hard Computational Problems." Science, vol. 268, 1995, p. 542, https://doi.org/10.1126/science.7725098.