Roberts, S. (1984). International directory of telecommunications: Market trends, companies, statistics, products, and personnel. Longman.
Chicago Style (17th ed.) CitationRoberts, Steven. International Directory of Telecommunications: Market Trends, Companies, Statistics, Products, and Personnel. Harlow, Essex, UK: Longman, 1984.
MLA (9th ed.) CitationRoberts, Steven. International Directory of Telecommunications: Market Trends, Companies, Statistics, Products, and Personnel. Longman, 1984.
Warning: These citations may not always be 100% accurate.