Higgins, M., Bell, R. R., & Burnham, J. M. (1994). Managing productivity and change. South Melbourne: Nelson.
Chicago Style aipamenaHiggins, Mark., Robert R. Bell, và John M. Burnham. Managing Productivity and Change. South Melbourne: Nelson, 1994.
MLA aipamenaHiggins, Mark., Robert R. Bell, và John M. Burnham. Managing Productivity and Change. South Melbourne: Nelson, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.