Παραπομπή APA

Houston, W. J. B. E. (1976). Walther`s orthodontic notes (Ed.3.).

Παραπομπή Chicago Style

Houston, W J B; Ed. Walther`s Orthodontic Notes. Ed.3. Bristol, John Wright & Sons, 1976.

Παραπομπή MLA

Houston, W J B; Ed. Walther`s Orthodontic Notes. Ed.3. 1976.