APA (7th ed.) Citation

Bek, T., Bech, B. H., & Nisted, I. Use of refractive aids among adults in a general population. Nature Portfolio.

Chicago Style (17th ed.) Citation

Bek, Toke, Bodil Hammer Bech, and Ivan Nisted. Use of Refractive Aids Among Adults in a General Population. Nature Portfolio.

MLA (9th ed.) Citation

Bek, Toke, et al. Use of Refractive Aids Among Adults in a General Population. Nature Portfolio.