TY  - GEN
AU  - Khurana, A K 
AU  - Khurana, Aruj K
TI  - Theory and practice of optics and refraction  
SN  - 9788131263716
PY  - 2023///
CY  - New Delhi
PB  - Elsevier
KW  - Ophthalmic Technology
KW  - Ophthalmology
N1  - PG
ER  -