Citazione Stile APA (7a Edizione)
United States of America, Department of Health Education and Welfare. (1959). Preparation of a mentally retarded youth for gainful employment.
Citazione stile Chigago Style (17a edizione)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
Citatione MLA (9a ed.)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.