Parel, S. The SmileLine system,
Taylor Publishing Company, 1991, 95 s., 0-9623064-1-X.
Parel, S. .
The SmileLine system.
Dallas: Taylor Publishing Company, 1991, 95 s., 0-9623064-1-X.
Parel, S. (1991)
The SmileLine system,
Dallas: Taylor Publishing Company, 95 s., 0-9623064-1-X
Parel, S.
(1991).
The SmileLine system. Asthetische Distanzhulsenkomponenten fur festsitzende Brucken und Einzelzahnersatz. Dallas: Taylor Publishing Company, 95 s..