Ferris, John D. Essential medical ophthalmology : a problem oriented-approach / John D. Ferris - Oxford : Butterworth-Heinemann, 2001 - 293 p. : ill. ; 25 cm. ISBN: 0750649372 RM256.50 Subjects--Topical Terms: Ophthalmology National Library of Medicine Call No.: WW100 / .F394 2001 9