Gaya APA

KVALHEIM, S. et al (2013). Smoking as a risk factor for chronic musculoskeletal complain is influenced by age. The HUNT study . Washington DC: IASP.

Gaya MLA

KVALHEIM, Synnove. et al. "Smoking as a risk factor for chronic musculoskeletal complain is influenced by age. The HUNT study". Washington DC: IASP, 2013. Artikel.