APA-viite

George philip. (1993). An MS -DOS based package for learnig UNIX. computer science,cusat.

Chicago-tyylinen lähdeviittaus

George philip. An MS -DOS Based Package for Learnig UNIX. cusat: computer science,cusat, 1993.

MLA-viite

George philip. An MS -DOS Based Package for Learnig UNIX. computer science,cusat, 1993.