TY  - BOOK
AU  - Perry,D.A
AU  - Beemsterboer,P.
AU  - Carranza,F.A.
TI  - Techniques And Theory of Periodontal Instrumentation
U1  - 6,176,320,028 
PY  - 1990///
CY  - London
PB  - W.B.Saunders Co
KW  - Periodontics(617.632)
ER  -