APA (7th ed.) Citation

Harris, H. F. (1956). A high efficiency even order frequency multiplier. [publisher not identified].

Chicago Style (17th ed.) Citation

Harris, Harold Floyd. A High Efficiency Even Order Frequency Multiplier. [College Station, Tex.]: [publisher not identified], 1956.

MLA (9th ed.) Citation

Harris, Harold Floyd. A High Efficiency Even Order Frequency Multiplier. [publisher not identified], 1956.