APA (7th ed.) Citation

Owens, P. R. (1967). The ultraviolet spectrum of S¹⁸O₂ and S¹⁶O₂. [publisher not identified].

Chicago Style (17th ed.) Citation

Owens, Paul Robert. The Ultraviolet Spectrum of S¹⁸O₂ and S¹⁶O₂. [Place of publication not identified]: [publisher not identified], 1967.

MLA (9th ed.) Citation

Owens, Paul Robert. The Ultraviolet Spectrum of S¹⁸O₂ and S¹⁶O₂. [publisher not identified], 1967.