APA (7th ed.) Citation

SpringerLink (Online service), Penfold, P. L., & Provis, J. M. (2005). Macular Degeneration. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Philip L. Penfold, and Jan M. Provis. Macular Degeneration. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Macular Degeneration. Springer Berlin Heidelberg, 2005.

Warning: These citations may not always be 100% accurate.