Citazione Stile APA (7a Edizione)

ROY, N. (2004). HOW IT WORKS THE TELEPHONE (REPRINTED.). A CBT PUBLICATION.

Citazione stile Chigago Style (17a edizione)

ROY, NAVKALA. HOW IT WORKS THE TELEPHONE. REPRINTED. NEW DELHI: A CBT PUBLICATION, 2004.

Citatione MLA (9a ed.)

ROY, NAVKALA. HOW IT WORKS THE TELEPHONE. REPRINTED. A CBT PUBLICATION, 2004.