Cita APA (7th ed.)

Ismail, A., Cooper, C., Felsenberg, D., Varlow, J., Kanis, J., Silman, A., & O'Neill, T. (1999). Number and type of vertebral deformities: Epidemiological characteristics and relation to back pain and height loss. European Vertebral Osteoporosis Study Group.

Cita Chicago (17th ed.)

Ismail, A., C. Cooper, D. Felsenberg, J. Varlow, J. Kanis, A. Silman, i T. O'Neill. Number and Type of Vertebral Deformities: Epidemiological Characteristics and Relation to Back Pain and Height Loss. European Vertebral Osteoporosis Study Group. 1999.

Cita MLA (9th ed.)

Ismail, A., et al. Number and Type of Vertebral Deformities: Epidemiological Characteristics and Relation to Back Pain and Height Loss. European Vertebral Osteoporosis Study Group. 1999.