ebrary, Inc, Baum, S. L., & Lynggaard, H. (2006). Intellectual disabilities: A systemic approach. Karnac.
芝加哥风格引文ebrary, Inc, Sandra Lea Baum, 与 Henrik Lynggaard. Intellectual Disabilities: A Systemic Approach. London ; New York: Karnac, 2006.
MLA引文ebrary, Inc, et al. Intellectual Disabilities: A Systemic Approach. Karnac, 2006.
警告：这些引文格式不一定是100％准确.