Citazione APA

Norton,, P. (1997). Peter Norton's complete guide to DOS 6.22 (1st.). Techmedia.

Stile di citazione Chicago

Norton,, Peter. Peter Norton's Complete Guide to DOS 6.22. 1st. New Delhi: Techmedia, 1997.

Citazione MLA

Norton,, Peter. Peter Norton's Complete Guide to DOS 6.22. 1st. Techmedia, 1997.