APA

Turpin D. L., . (20050321). Clinical trials needed to answer questions about Invisalign. : 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

Turpin David L, . 20050321. Clinical trials needed to answer questions about Invisalign. : 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

Turpin D. L., . (20050321). Clinical trials needed to answer questions about Invisalign. : 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

Turpin David L, . Clinical trials needed to answer questions about Invisalign. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. 20050321.