APA Style

Das, Sumitabha. (2011). UNIX: Concepts and Applications 4th ed. (4th ed.). New Delhi: Tata Mc Graw Hill.

Chicago Style

Das, Sumitabha. UNIX: Concepts and Applications 4th ed.. 4th ed. New Delhi: Tata Mc Graw Hill, 2011. Text.

MLA Style

Das, Sumitabha. UNIX: Concepts and Applications 4th ed.. 4th ed. New Delhi: Tata Mc Graw Hill, 2011. Text.

Turabian Style

Das, Sumitabha. UNIX: Concepts and Applications 4th ed.. 4th ed. New Delhi: Tata Mc Graw Hill, 2011. Print.