APA (7th ed.) Citation

Downey Richard, Boland Sean, & Walsh Philip. (1998). Communications technology guide for business. Artech House.

Chicago Style (17th ed.) Citation

Downey Richard, Boland Sean, and Walsh Philip. Communications Technology Guide for Business. Artech House, 1998.

MLA (8th ed.) Citation

Downey Richard, et al. Communications Technology Guide for Business. Artech House, 1998.