Παραπομπή APA

Virendra Kumar. Upkar's TGT/ PGT computer science. Upkar prakashan.

Παραπομπή Chicago Style

Virendra Kumar. Upkar's TGT/ PGT Computer Science. Agra: Upkar prakashan.

Παραπομπή MLA

Virendra Kumar. Upkar's TGT/ PGT Computer Science. Upkar prakashan.