APA
Sobell M. G., . (1997). A Practical guide to linux. Pearson Education Asia, New Delhi: .
Chicago
Sobell Mark G, . 1997. A Practical guide to linux. Pearson Education Asia, New Delhi: .
Harvard
Sobell M. G., . (1997). A Practical guide to linux. Pearson Education Asia, New Delhi: .
MLA
Sobell Mark G, . A Practical guide to linux. Pearson Education Asia, New Delhi: . 1997.