TY  - BOOK
AU  - Nield- Gehrig, Jill S..
AU  - Houseman, Ginger A.
TI  - Fundamental of dental Hygine Instrumentation / 
U1  - 617.632 
PY  - 1988///
CY  - Philadelphia : 
PB  - lea & Febiger , 
KW  - Periodontology
ER  -