Hardless, H. R. (1979). Handwriting and thumbprint identification and forensic science (2d ed.). Law Book Co..
Lua i Stíl Chicago (17ú heag.)Hardless, H. R. Handwriting and Thumbprint Identification and Forensic Science. 2d ed. Allahabad: Law Book Co., 1979.
Lua MLA (8ú heag.)Hardless, H. R. Handwriting and Thumbprint Identification and Forensic Science. 2d ed. Law Book Co., 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.