United Nations Educational, Scientific and Cultural Organization. (1969). Special education. s.n.
Style de citation Chicago (17e éd.)United Nations Educational, Scientific and Cultural Organization. Special Education. [Paris: s.n, 1969.
Style de citation MLA (9e éd.)United Nations Educational, Scientific and Cultural Organization. Special Education. s.n, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.