Perske, R. (1981). Hope for the families: New directions for parents of persons with retardation or other disabilities. Abingdon.
芝加哥风格引文Perske, Robert. Hope for the Families: New Directions for Parents of Persons with Retardation or Other Disabilities. Nashville: Abingdon, 1981.
MLA引文Perske, Robert. Hope for the Families: New Directions for Parents of Persons with Retardation or Other Disabilities. Abingdon, 1981.
警告：这些引文格式不一定是100％准确.