APA (7th ed.) Citation

Butler, N. R. (1970). Observations of pseudo-half orders in a double-pass Ebert monochromator. Applied Optics, 9, 1475.

Chicago Style (17th ed.) Citation

Butler, N. R. "Observations of Pseudo-half Orders in a Double-pass Ebert Monochromator." Applied Optics 9 (1970): 1475.

MLA (9th ed.) Citation

Butler, N. R. "Observations of Pseudo-half Orders in a Double-pass Ebert Monochromator." Applied Optics, vol. 9, 1970, p. 1475.