APA (7th ed.) Citation

Howells, S. (1981). Medium PRF uv preionised TEA CO2 laser. Journal of Physics. E, Scientific Instruments., 14, 293.

Chicago Style (17th ed.) Citation

Howells, S. "Medium PRF Uv Preionised TEA CO2 Laser." Journal of Physics. E, Scientific Instruments. 14 (1981): 293.

MLA (9th ed.) Citation

Howells, S. "Medium PRF Uv Preionised TEA CO2 Laser." Journal of Physics. E, Scientific Instruments., vol. 14, 1981, p. 293.