TY  - BOOK
AU  - Ryer,Elmer Le Roy
AU  - Hotaling,Elmer E.
TI  - Optometric procedure, basic and supplementary
AV  - RE81 RYE 1941
PY  - 1941///]
CY  - [New York
KW  -  Optometry
KW  - Optometry Practice
ER  -