Cita APA (7th ed.)

Walker-Bone, K., Dennison, E., & Cooper, C. (2001). Epidemiology of osteoporosis.

Cita Chicago (17th ed.)

Walker-Bone, K., E. Dennison, i C. Cooper. Epidemiology of Osteoporosis. 2001.

Cita MLA (9th ed.)

Walker-Bone, K., et al. Epidemiology of Osteoporosis. 2001.