(1968). Security: Attitudes and techniques for management. Hutchinson.
Chicago Style (17th ed.) ZitazioaSecurity: Attitudes and Techniques for Management. London: Hutchinson, 1968.
MLA (9th ed.) ZitazioaSecurity: Attitudes and Techniques for Management. Hutchinson, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.