APA Style

Sumitabha, D. (1993). UNIX System V.4 Concept and Application (1 st ed 1993). New Delhi: Tata McGraw-Hill Publishing Company Limited.

MLA Style

Sumitabha, Das. "UNIX System V.4 Concept and Application". 1 st ed 1993 New Delhi: Tata McGraw-Hill Publishing Company Limited, 1993. Text.