Citazione Stile APA (7a Edizione)

International , B. (1986). Disk Opreting System Version 3.10. I.B.M.

Citazione stile Chigago Style (17a edizione)

International , Business. Disk Opreting System Version 3.10. NULL: I.B.M, 1986.

Citatione MLA (9a ed.)

International , Business. Disk Opreting System Version 3.10. I.B.M, 1986.