Gregory, R. A. (1989). Russell A Gregory's identification of disputed documents, finger prints and ballistics (4th ed.). Eastern Book Company.
Style de citation ChicagoGregory, Russell A. Russell A Gregory's Identification of Disputed Documents, Finger Prints and Ballistics. 4th ed. Lucknow: Eastern Book Company, 1989.
Style de citation MLAGregory, Russell A. Russell A Gregory's Identification of Disputed Documents, Finger Prints and Ballistics. 4th ed. Eastern Book Company, 1989.
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