APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

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