Gaya APA
Olds, S, B.
(2008).
Age-related Macular Degeneration; 2nd ed.
.
Ne York:
Informa Health care.
Gaya MLA
Olds, Sally, B..
"Age-related Macular Degeneration; 2nd ed.".
Ne York:
Informa Health care,
2008.
Textbook.