APA Citation

Heldman, R. K. Information telecommunications: Networks, products, and services / by Robert K. Heldman. New York ; London : McGraw-Hill, c1994.

Chicago Style Citation

Heldman, Robert K. Information Telecommunications: Networks, Products, and Services / By Robert K. Heldman. New York ; London : McGraw-Hill, c1994.

MLA Citation

Heldman, Robert K. Information Telecommunications: Networks, Products, and Services / By Robert K. Heldman. New York ; London : McGraw-Hill, c1994.

Warning: These citations may not always be 100% accurate.