Hartzell, T. B. (1913). Pyorrhea Alveolaris: Its Etiology and Treatment. Dent Regist.
Chicago ZitierstilHartzell, Thos. B. "Pyorrhea Alveolaris: Its Etiology and Treatment." Dent Regist 1913.
MLA ZitierstilHartzell, Thos. B. "Pyorrhea Alveolaris: Its Etiology and Treatment." Dent Regist 1913.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.