Παραπομπή σε μορφή APA (7η εκδ.)

Hardless, H. R. (1970). Handwriting and thumb-print identification and forensic science: With blocks, illus., sketches, etc. Law Book Co..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hardless, H. R. Handwriting and Thumb-print Identification and Forensic Science: With Blocks, Illus., Sketches, Etc. Allahabad: Law Book Co., 1970.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hardless, H. R. Handwriting and Thumb-print Identification and Forensic Science: With Blocks, Illus., Sketches, Etc. Law Book Co., 1970.