एपीए उद्धरण

Timm, S., Frydenberg, M., Janson, C., Campbell, B., Forsberg, B., Gislason, T., . . . Schlünssen, V. (2015). The Urban-Rural Gradient In Asthma: A Population-Based Study in Northern Europe. Int J Environ Res Public Health.

शिकागो स्टाइल उद्धरण

Timm, Signe, et al. "The Urban-Rural Gradient In Asthma: A Population-Based Study in Northern Europe." Int J Environ Res Public Health 2015.

एमएलए उद्धरण

Timm, Signe, et al. "The Urban-Rural Gradient In Asthma: A Population-Based Study in Northern Europe." Int J Environ Res Public Health 2015.