APA
Bourke A., Daskalogiannakis J., Tompson B. & Watson P. (20100913). Force characteristics of nickel-titanium open-coil springs. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.
Chicago
Bourke Allyson, Daskalogiannakis John, Tompson Bryan and Watson Philip. 20100913. Force characteristics of nickel-titanium open-coil springs. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.
Harvard
Bourke A., Daskalogiannakis J., Tompson B. and Watson P. (20100913). Force characteristics of nickel-titanium open-coil springs. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.
MLA
Bourke Allyson, Daskalogiannakis John, Tompson Bryan and Watson Philip. Force characteristics of nickel-titanium open-coil springs. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. 20100913.