Cita APA (7th ed.)

Sadovnick, A., Yee, I., & Ebers, G. (2005). Multiple sclerosis and birth order: A longitudinal cohort study.

Cita Chicago (17th ed.)

Sadovnick, A., I. Yee, i G. Ebers. Multiple Sclerosis and Birth Order: A Longitudinal Cohort Study. 2005.

Cita MLA (9th ed.)

Sadovnick, A., et al. Multiple Sclerosis and Birth Order: A Longitudinal Cohort Study. 2005.