APA (7th ed.) Citation

Frenzel, L. E. (1981). Digital counter handbook. Sams.

Chicago Style (17th ed.) Citation

Frenzel, Louis E. Digital Counter Handbook. Indianapolis: Sams, 1981.

MLA (9th ed.) Citation

Frenzel, Louis E. Digital Counter Handbook. Sams, 1981.

Warning: These citations may not always be 100% accurate.