World Health Organization. (1980). International classification of impairments, disabilities, and handicaps: A manual of classification relating to the consequences of disease. World Health Organization ; sold by WHO Publications Centre USA].
Chicago (17e ed.) BronvermeldingWorld Health Organization. International Classification of Impairments, Disabilities, and Handicaps: A Manual of Classification Relating to the Consequences of Disease. Geneva : [Albany, N.Y.: World Health Organization ; sold by WHO Publications Centre USA], 1980.
MLA (8e ed.) BronvermeldingWorld Health Organization. International Classification of Impairments, Disabilities, and Handicaps: A Manual of Classification Relating to the Consequences of Disease. World Health Organization ; sold by WHO Publications Centre USA], 1980.