TY  - BOOK
AU  - Duke-Elder,W.Stewart
TI  - The Practice of refraction
U1  - 617.755 
PY  - 1928///
CY  - London
PB  - J and A Churchill
KW  - Eye
KW  - Surgery
KW  - Diseases
KW  - Treatment
KW  - Diagnosis
N1  - Includes index
ER  -