APA

Yang S., Guo Y., Yang X., Zhang F., Wang J., Qiu J. & Li J. (20151123). Effect of mesiodistal angulation of the maxillary central incisors on esthetic perceptions of the smile in the frontal view. : 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

Yang Shuying, Guo Yunfei, Yang Xianrui, Zhang Feng, Wang Jian, Qiu Jingyi and Li Juan. 20151123. Effect of mesiodistal angulation of the maxillary central incisors on esthetic perceptions of the smile in the frontal view. : 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

Yang S., Guo Y., Yang X., Zhang F., Wang J., Qiu J. and Li J. (20151123). Effect of mesiodistal angulation of the maxillary central incisors on esthetic perceptions of the smile in the frontal view. : 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

Yang Shuying, Guo Yunfei, Yang Xianrui, Zhang Feng, Wang Jian, Qiu Jingyi and Li Juan. Effect of mesiodistal angulation of the maxillary central incisors on esthetic perceptions of the smile in the frontal view. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. 20151123.