TY  - BOOK
AU  - MacPhee,Torquil
AU  - Cowley,Geoffrey
TI  - Essentials of periodontology and periodontics
SN  - 0632005335
U1  - 617.632 
PY  - 1981///
CY  - Oxford 
PB  - Blackwell Scientific Publications
KW  - Periodontics
ER  -