APA-čujuhus (7. p.)
ebrary, Inc, Astor, R., & Jeffereys, K. (2000). Positive initiatives for people with learning difficulties: Promoting healthy lifestyles. Macmillan.
Chicago-čujuhus (17. p.)
ebrary, Inc, Roberta Astor, juo Karen Jeffereys. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Basingstoke: Macmillan, 2000.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Macmillan, 2000.
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