APA (7th ed.) Citation

Keirstead, P. O., & Keirstead, S. (1990). The world of telecommunication: Introduction to broadcasting, cable, and new technologies. Focal Pr.

Chicago Style (17th ed.) Citation

Keirstead, Phillip O., and Sonia-Kay Keirstead. The World of Telecommunication: Introduction to Broadcasting, Cable, and New Technologies. Boston u.a: Focal Pr, 1990.

MLA (9th ed.) Citation

Keirstead, Phillip O., and Sonia-Kay Keirstead. The World of Telecommunication: Introduction to Broadcasting, Cable, and New Technologies. Focal Pr, 1990.