APA (7th ed.) Citation

Boaz, V. L. (1961). A microwave impedance meter. [publisher not identified].

Chicago Style (17th ed.) Citation

Boaz, Virgil Layfaette. A Microwave Impedance Meter. [College Station, Tex.]: [publisher not identified], 1961.

MLA (9th ed.) Citation

Boaz, Virgil Layfaette. A Microwave Impedance Meter. [publisher not identified], 1961.