Cita APA (7th ed.)

Sapien, M. (1997). Mastering ISDN (Integrated Services Digital Network). BPB.

Cita Chicago (17th ed.)

Sapien, Mike. Mastering ISDN (Integrated Services Digital Network). New Delhi: BPB, 1997.

Cita MLA (9th ed.)

Sapien, Mike. Mastering ISDN (Integrated Services Digital Network). BPB, 1997.