TY  - BOOK
AU  - O'Brien,Richard C.
TI  - Dental radiography: an introduction for dental hygienists and assistants 
SN  - 0721668879
AV  - RK309 O274D 1982
PY  - 1982///
CY  - Philadelphia, Pa.
PB  - Saunders
KW  - TEETH
KW  - RADIOGRAPHY
N1  - Includes index
ER  -