Dyfyniad APA
ebrary, Inc, Astor, R., & Jeffereys, K. (2000). Positive initiatives for people with learning difficulties: Promoting healthy lifestyles. Macmillan.
Dyfyniad Arddull Chicago
ebrary, Inc, Roberta Astor, and Karen Jeffereys. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Basingstoke: Macmillan, 2000.
Dyfyniad MLA
ebrary, Inc, et al. Positive Initiatives for People with Learning Difficulties: Promoting Healthy Lifestyles. Macmillan, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.