APA
Das S., . (2003). UNIX concepts and applications. Tata McGraw Hill, New Delhi: .
Chicago
Das Sumitabha, . 2003. UNIX concepts and applications. Tata McGraw Hill, New Delhi: .
Harvard
Das S., . (2003). UNIX concepts and applications. Tata McGraw Hill, New Delhi: .
MLA
Das Sumitabha, . UNIX concepts and applications. Tata McGraw Hill, New Delhi: . 2003.