APA
(2016). Indian Optician Vol. 48 (274 – 275) Jan - April. : .
Chicago
2016. Indian Optician Vol. 48 (274 – 275) Jan - April. : .
Harvard
(2016). Indian Optician Vol. 48 (274 – 275) Jan - April. : .
MLA
Indian Optician Vol. 48 (274 – 275) Jan - April. : . 2016.