Krieger, G. R., & Montgomery, J. F. (1997). Accident prevention manual for business & industry: Administration & programs. National Safety Council.
Chicago Style aipamenaKrieger, Gary R., and John F. Montgomery. Accident Prevention Manual for Business & Industry: Administration & Programs. Itasca, IL: National Safety Council, 1997.
MLA aipamenaKrieger, Gary R., and John F. Montgomery. Accident Prevention Manual for Business & Industry: Administration & Programs. National Safety Council, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.