APA-ийн эшлэл(7 дахь хэвлэлт)
United States of America, Department of Health Education and Welfare. (1959). Preparation of a mentally retarded youth for gainful employment.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
MLA -ийн эшлэл (9 дэх хэвлэлт)
United States of America, Department of Health Education and Welfare. Preparation of a Mentally Retarded Youth for Gainful Employment. 1959.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.