Nelson, Leonard B. Symposium on pediatric ophthalmology / Leonard B Nelson. - Philadelphia : Saunders, c1983. - viii, pages 975-1232 : ill. ; 24 cm. - Pediatric clinics of North America, v. 30, no. 6. . Includes bibliographical references and index. ISBN: 10290481 LC Class. No.: RJ23 / .N45 1983