Hugnes, W. F. (1981). The year book ophthalmology. Year Book Medical.
Cita Chicago Style (17a ed.)Hugnes, William F. The Year Book Ophthalmology. Year Book Medical, 1981.
Cita MLA (9a ed.)Hugnes, William F. The Year Book Ophthalmology. Year Book Medical, 1981.
Precaución: Estas citas no son 100% exactas.