APA (7th ed.) Citation

Philipson, G. (1991). Mainframe wars. Computer Technology Research Corp..

Chicago Style (17th ed.) Citation

Philipson, Graeme. Mainframe Wars. Charleston, S.C., U.S.A.: Computer Technology Research Corp., 1991.

MLA (8th ed.) Citation

Philipson, Graeme. Mainframe Wars. Computer Technology Research Corp., 1991.

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