APA (7th ed.) Citation

Yun, W. B., & Howells, M. R. (1987). High-resolution Fresnel zone plates for x-ray applications by spatial-frequency multiplication. Journal of the Optical Society of America. A, Optics & Image Science, 4, 34.

Chicago Style (17th ed.) Citation

Yun, W. B., and M. R. Howells. "High-resolution Fresnel Zone Plates for X-ray Applications by Spatial-frequency Multiplication." Journal of the Optical Society of America. A, Optics & Image Science 4 (1987): 34.

MLA (9th ed.) Citation

Yun, W. B., and M. R. Howells. "High-resolution Fresnel Zone Plates for X-ray Applications by Spatial-frequency Multiplication." Journal of the Optical Society of America. A, Optics & Image Science, vol. 4, 1987, p. 34.