Styl cytowania APA

Leon, A., & Leon, M. (1999). Fundamentals of information technology. Leon Tech World.

Styl cytowania Chicago

Leon, Alexis, i Mathews Leon. Fundamentals of Information Technology. Chennai: Leon Tech World, 1999.

Styl cytowania MLA

Leon, Alexis, i Mathews Leon. Fundamentals of Information Technology. Leon Tech World, 1999.