(1958). Orthodontic directory of the world (29a. ed.). American Association of Orthodontists.
Chicago Style (17th ed.) CitationOrthodontic Directory of the World. 29a. ed. Estados Unidos: American Association of Orthodontists, 1958.
MLA (9th ed.) CitationOrthodontic Directory of the World. 29a. ed. American Association of Orthodontists, 1958.