APA (7th ed.) Zitazioa
JOHANSSON, G., & ET AL. (1991). SMOKING AND SEDENTARY BEHAVIOR AS RELATED TO WORK ORGANIZATION.
Chicago Style (17th ed.) Zitazioa
JOHANSSON, G., eta ET AL. SMOKING AND SEDENTARY BEHAVIOR AS RELATED TO WORK ORGANIZATION. 1991.
MLA (9th ed.) Zitazioa
JOHANSSON, G., eta ET AL. SMOKING AND SEDENTARY BEHAVIOR AS RELATED TO WORK ORGANIZATION. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.