Cita APA (7a ed.)
United States of America, Department of Health Education and Welfare. (1959). Preparation of a mentally retarded youth for gainful employment.
Cita estilo Chicago (17a ed.)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
Cita MLA (9a ed.)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
Precaución: Estas citas no son 100% exactas.