APA (7th ed.) Citation

Bjertness Espen, Selmer Randi, Søgaard Anne, & Thelle Dag. (2004). The Oslo Health Study: The impact of self-selection in a large, population-based survey. BMC.

Chicago Style (17th ed.) Citation

Bjertness Espen, Selmer Randi, Søgaard Anne, and Thelle Dag. The Oslo Health Study: The Impact of Self-selection in a Large, Population-based Survey. BMC, 2004.

MLA (9th ed.) Citation

Bjertness Espen, et al. The Oslo Health Study: The Impact of Self-selection in a Large, Population-based Survey. BMC, 2004.

Warning: These citations may not always be 100% accurate.