Citazione APA

Heldman, R. K. (1993). Future telecommunications: Information applications, services & infrastructure. Washington, D.C: McGraw-Hill.

Stile di citazione Chicago

Heldman, Robert K. Future Telecommunications: Information Applications, Services & Infrastructure. Washington, D.C: McGraw-Hill, 1993.

Citazione MLA

Heldman, Robert K. Future Telecommunications: Information Applications, Services & Infrastructure. Washington, D.C: McGraw-Hill, 1993.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.