APA
Whiddett R. J., . (1985). Unix: a practical introduction for users. Affiliated East-West Press Pvt Lid, New Delhi: .
Chicago
Whiddett R J, . 1985. Unix: a practical introduction for users. Affiliated East-West Press Pvt Lid, New Delhi: .
Harvard
Whiddett R. J., . (1985). Unix: a practical introduction for users. Affiliated East-West Press Pvt Lid, New Delhi: .
MLA
Whiddett R J, . Unix: a practical introduction for users. Affiliated East-West Press Pvt Lid, New Delhi: . 1985.