TY  - BOOK
AU  - Pattison, A.M.
TI  - Periodontal Instumentaion 
SN  - 0-8385-7804-7
U1  - 617.632 
PY  - 1992///
CY  - [s.l]
PB  - Appleton and Lange
KW  - Periodontology
ER  -