APA (7th ed.) Citation

(1992). Election signature retrieval systems / author Ralph C. Heikkila ; managed and edited by William C. Kimberling.

Chicago Style (17th ed.) Citation

Election Signature Retrieval Systems / Author Ralph C. Heikkila ; Managed and Edited by William C. Kimberling. 1992.

MLA (9th ed.) Citation

Election Signature Retrieval Systems / Author Ralph C. Heikkila ; Managed and Edited by William C. Kimberling. 1992.