A practical guide to Ubuntu Linux

MLA

Sobell, Mark G. A practical guide to Ubuntu Linux. 3rd ed. [Place of publication not identified] Prentice Hall 2011

APA

Sobell, M. (2011). A practical guide to Ubuntu Linux. 3rd ed. [Place of publication not identified] Prentice Hall.

Chicago

Sobell, Mark G. A practical guide to Ubuntu Linux. 3rd ed. [Place of publication not identified] Prentice Hall 2011