Roff, H., & Watson, T. (1961). Job analysis. Institute of personnel management.
Chicago Style aipamenaRoff, H.E, and T.E Watson. Job Analysis. London: Institute of personnel management, 1961.
MLA aipamenaRoff, H.E, and T.E Watson. Job Analysis. Institute of personnel management, 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.