APA-referens (7:e uppl.)

Nunn, A., Craigen, A., Darbyshire, J., Venables, K., & Newman Taylor, A. (1990). Six year follow up of lung function in men occupationally exposed to formaldehyde.

Chicago-referens (17:e uppl.)

Nunn, A., A. Craigen, J. Darbyshire, K. Venables, och A. Newman Taylor. Six Year Follow Up of Lung Function in Men Occupationally Exposed to Formaldehyde. 1990.

MLA-referens (9:e uppl.)

Nunn, A., et al. Six Year Follow Up of Lung Function in Men Occupationally Exposed to Formaldehyde. 1990.