TY  - RPRT
TI  - Contract grading in community dentistry.
AU  - S B Zucker
AU  - J G Odom
AU  - H G Cheney
AU  - L D Fretwell
PY  - 1978
UR  - https://pubmed.ncbi.nlm.nih.gov/281387/
ID  - 281387
ER  -