Kauffman, J. M., & Hallahan, D. P. (2005). Special education: What it is and why we need it. Pearson/Allyn and Bacon.
Παραπομπή σε μορφή Chicago (17η εκδ.)Kauffman, James M., και Daniel P. Hallahan. Special Education: What It Is and Why We Need It. Boston: Pearson/Allyn and Bacon, 2005.
Παραπομπή σε μορφή MLA (9th εκδ.)Kauffman, James M., και Daniel P. Hallahan. Special Education: What It Is and Why We Need It. Pearson/Allyn and Bacon, 2005.
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