APA (7th ed.) Citation

Computer Technology Research. (1990). Analysis of today's telecommnications systems: IBM v.s competitors. Computer Technology Research Corp.

Chicago Style (17th ed.) Citation

Computer Technology Research. Analysis of Today's Telecommnications Systems: IBM V.s Competitors. New York: Computer Technology Research Corp, 1990.

MLA (8th ed.) Citation

Computer Technology Research. Analysis of Today's Telecommnications Systems: IBM V.s Competitors. Computer Technology Research Corp, 1990.