APA-referens (7:e uppl.)

U.S. Office of Education, Mackie, R. P., & Robbins, P. (1961). Exceptional children and youth: A chart book of special education enrollments in public day schools of the United States. s.n.

Chicago-referens (17:e uppl.)

U.S. Office of Education, Romaine Prior Mackie, och Patricia Robbins. Exceptional Children and Youth: A Chart Book of Special Education Enrollments in Public Day Schools of the United States. [Washington: s.n, 1961.

MLA-referens (9:e uppl.)

U.S. Office of Education, et al. Exceptional Children and Youth: A Chart Book of Special Education Enrollments in Public Day Schools of the United States. s.n, 1961.