Cita APA

Hart, J. A., & Richardson, J. A. (1975). Books for the retarded reader (2.).

Chicago Edition Citation

Hart, J A., i J A. Richardson. Books for the Retarded Reader. 2. London, Ernest Benn Ltd, 1975.

Cita MLA

Hart, J A., i J A. Richardson. Books for the Retarded Reader. 2. 1975.