APA-ийн эшлэл(7 дахь хэвлэлт)
ebrary, Inc, Astor, R., & Jeffereys, K. (2000). Positive initiatives for people with learning difficulties: Promoting healthy lifestyles. Macmillan.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
ebrary, Inc, Roberta Astor, ба Karen Jeffereys. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Basingstoke: Macmillan, 2000.
MLA -ийн эшлэл (9 дэх хэвлэлт)
ebrary, Inc, et al. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Macmillan, 2000.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.