found: Work cat.: Abbott, J. Trap line IV, 1983.
found: Report of the Virginia Board of Commerce on the study of the establishment of a Private Investigator's Board, 1988.
found: Forte, I. Private "I," 1985.
found: Nat. crim. just. thesaurus, 1986.
found: Web. 3.
found: Random House(UF from "Private investigators" to "Private detectives")
found: LC data base, 11/30/88(private investigator or private investigators)
found: Dict. of occupational titles, 1977:p. 258 , cite no. 376.267-018 ("Investigator, Private")