TY  - BOOK
AU  - O'Brien,Richard C.
TI  - Dental radiography : an introduction for dental hygienists and assistants
SN  - 0721668879
U1  - 617.607572 
PY  - 1982///
CY  - Philadelphia
PB  - Saunders
KW  - Teeth - Radiography
KW  - Radiography, Dental
N1  - Includes index
ER  -