TY  - BOOK
AU  - Abrams,David
AU  - Duke-Elder,Stewart
TI  - Duke-Elder's practice of refraction
SN  - 9788131233337
AV  - RE925 .D37 2021
PY  - 2021///
CY  - Amsterdam
PB  - Elsevier
KW  - Eye
KW  - Accommodation and refraction
KW  - Eyeglasses
N1  - Includes index
ER  -