Olsen, J. M. (1991). Searching for causes of work related diseases: An introduction to epidemiology at the work site. Oxford Mecial Publications.
Lua i Stíl Chicago (17ú heag.)Olsen, Jorn Merletti. Searching for Causes of Work Related Diseases: An Introduction to Epidemiology at the Work Site. New York: Oxford Mecial Publications, 1991.
Lua MLA (8ú heag.)Olsen, Jorn Merletti. Searching for Causes of Work Related Diseases: An Introduction to Epidemiology at the Work Site. Oxford Mecial Publications, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.