APA
(2012). Indian Optician Vol.44 (254 – 255) Sept – Dec. : .
Chicago
2012. Indian Optician Vol.44 (254 – 255) Sept – Dec. : .
Harvard
(2012). Indian Optician Vol.44 (254 – 255) Sept – Dec. : .
MLA
Indian Optician Vol.44 (254 – 255) Sept – Dec. : . 2012.