The use of residual vision by visually disabled persons.
Card's contents:EURO REPORTS AND STUDIES 41 604,716 604,607 The use of residual vision by visually disabled persons. Report on a WHO Meeting. Brussels 28 - 30 January 1981. Copenhagen 1981 Regional Office for Europe World Health Organization 8° s. nib. 4, 28, il. EURO Reports and Studies 41