Thielen, B. F. (1903). Formaldehyde in Root-Canals. Dent Regist.
Chicago Style CitationThielen, B. F. "Formaldehyde in Root-Canals." Dent Regist 1903.
Cita MLAThielen, B. F. "Formaldehyde in Root-Canals." Dent Regist 1903.
Atenció: Aquestes cites poden no estar 100% correctes.