Cita APA

Holroyd, C., Cooper, C., & Dennison, E. (2008). Epidemiology of osteoporosis.

Citación estilo Chicago

Holroyd, C., C. Cooper, and E. Dennison. Epidemiology of Osteoporosis. 2008.

Cita MLA

Holroyd, C., et al. Epidemiology of Osteoporosis. 2008.