PERKINS S. MULTIPLE SCLEROSIS : YEAR LEGAL RIGHTS / Textual Documents NULL. - 2 ED / . - NULL : DEMOS. PY.N. K. , 1999. - 227 : : IX ; ; A4 . + PB. GENERAL ISBN: 1888799315 NULL Subjects--Index Terms: KNOWLEDGE(GENERAL) Dewey Class. No.: 346.73013 / PER