एपीए उद्धरण

Hardless, H. (1979). Handwriting and Thumbprint identification and forensic science (2nd ed.). Law BK Company.

शिकागो स्टाइल उद्धरण

Hardless, Hr. Handwriting and Thumbprint Identification and Forensic Science. 2nd ed. Allahabad: Law BK Company, 1979.

एमएलए उद्धरण

Hardless, Hr. Handwriting and Thumbprint Identification and Forensic Science. 2nd ed. Law BK Company, 1979.