APA (7th ed.) Citation

Schmittroth, J., & Connors, M. (1983). Telecommunications systems and services directory. Gale research Co..

Chicago Style (17th ed.) Citation

Schmittroth, John, and Martin Connors. Telecommunications Systems and Services Directory. Detroit, Mich.: Gale research Co., 1983.

MLA (8th ed.) Citation

Schmittroth, John, and Martin Connors. Telecommunications Systems and Services Directory. Gale research Co., 1983.

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