Citazione APA

Kirk, C. (1998). The internet phone connection: Making [virtually] free long-distance calls with your computer. Tata McGraw-Hill.

Stile di citazione Chicago

Kirk, Cheryl. The Internet Phone Connection: Making [virtually] Free Long-distance Calls with Your Computer. New Delhi: Tata McGraw-Hill, 1998.

Citazione MLA

Kirk, Cheryl. The Internet Phone Connection: Making [virtually] Free Long-distance Calls with Your Computer. Tata McGraw-Hill, 1998.