Παραπομπή APA

Ritchie,, C. (1998). Operating Systems: Incorporating UNIX & Windows (3rd.). BPB Publications.

Παραπομπή Chicago Style

Ritchie,, Colin. Operating Systems: Incorporating UNIX & Windows. 3rd. New Delhi: BPB Publications, 1998.

Παραπομπή MLA

Ritchie,, Colin. Operating Systems: Incorporating UNIX & Windows. 3rd. BPB Publications, 1998.