APA (7th ed.) Citation

Betzig, E., & Chichester, R. J. (1993). Single molecules observed by near-field scanning optical microscopy. Science, 262, 1422. https://doi.org/10.1126/science.262.5138.1422

Chicago Style (17th ed.) Citation

Betzig, Eric, and Robert J. Chichester. "Single Molecules Observed by Near-field Scanning Optical Microscopy." Science 262 (1993): 1422. https://doi.org/10.1126/science.262.5138.1422.

MLA (9th ed.) Citation

Betzig, Eric, and Robert J. Chichester. "Single Molecules Observed by Near-field Scanning Optical Microscopy." Science, vol. 262, 1993, p. 1422, https://doi.org/10.1126/science.262.5138.1422.