299,472 PRINCIPLES Principles of geriatric medecine and gerontology / William R. Hazzard [et al.]. - 2 ed. - New York [etc.] : Me Graw-Hill Information Services Co. Health Professions Division, [1990], - XXVII, 1280 s. : il., wykr. ; 29 cm ISBN 0-07-027500-9