301,609 SOURCEBOOK Sourcebook and reference guide 1992-1993 / ed.-in-chief Paul R. Lichter. - 3 ed. - Philadelphia [etc.] s J. B. Lippincott Co., *1992?. -XXIII, [1], 168 s. j 28 cm (Ophthalmology, ISSN 0161-6420 , vol. 99, nr 9B suppl.)