APA-Zitierstil (7. Ausg.)

Heldman, R. K. (1993). Information telecommunications: Networks, products, and services. McGraw-Hill.

Chicago-Zitierstil (17. Ausg.)

Heldman, Robert K. Information Telecommunications: Networks, Products, and Services. New York [u.a.]: McGraw-Hill, 1993.

MLA-Zitierstil (9. Ausg.)

Heldman, Robert K. Information Telecommunications: Networks, Products, and Services. McGraw-Hill, 1993.