Παραπομπή APA

Uttam Kumar Singh & Nayak, A. (1997). Special education. Commonwealth.

Παραπομπή Chicago Style

Uttam Kumar Singh και A.K Nayak. Special Education. New Delhi: Commonwealth, 1997.

Παραπομπή MLA

Uttam Kumar Singh και A.K Nayak. Special Education. Commonwealth, 1997.