APA (7th ed.) Citation

Humphries, S., Burkhart, C., & Coffey, S. (1986). Grid-controlled extraction of pulsed ion beams. Journal of Applied Physics, 59, 1790. https://doi.org/10.1063/1.336401

Chicago Style (17th ed.) Citation

Humphries, S., C. Burkhart, and S. Coffey. "Grid-controlled Extraction of Pulsed Ion Beams." Journal of Applied Physics 59 (1986): 1790. https://doi.org/10.1063/1.336401.

MLA (9th ed.) Citation

Humphries, S., et al. "Grid-controlled Extraction of Pulsed Ion Beams." Journal of Applied Physics, vol. 59, 1986, p. 1790, https://doi.org/10.1063/1.336401.