APA (7th ed.) Citation

Fritze, C., & Simonson, E. (1951). New electronic apparatus for the measurement of the fusion frequency of flicker. Science, 113, 547. https://doi.org/10.1126/science.113.2941.547

Chicago Style (17th ed.) Citation

Fritze, C., and E. Simonson. "New Electronic Apparatus for the Measurement of the Fusion Frequency of Flicker." Science 113 (1951): 547. https://doi.org/10.1126/science.113.2941.547.

MLA (9th ed.) Citation

Fritze, C., and E. Simonson. "New Electronic Apparatus for the Measurement of the Fusion Frequency of Flicker." Science, vol. 113, 1951, p. 547, https://doi.org/10.1126/science.113.2941.547.