Gaya APA
Penfold, P, L., Provis, J, M.
(2005).
Macular Degeneration
(
1st ed.)
.
Berlin, Heidelberg:
Springer.
Gaya MLA
Penfold, Philip, L.., Provis, Jan, M..
"Macular Degeneration".
1st ed.
Berlin, Heidelberg:
Springer,
2005.
E Book.