APA (7th ed.) Citation

Cantrell, W. H. (1981). An analog four quadrant switched-capacitor multiplier. [publisher not identified].

Chicago Style (17th ed.) Citation

Cantrell, William Herbert. An Analog Four Quadrant Switched-capacitor Multiplier. [Place of publication not identified]: [publisher not identified], 1981.

MLA (9th ed.) Citation

Cantrell, William Herbert. An Analog Four Quadrant Switched-capacitor Multiplier. [publisher not identified], 1981.