APA
Pentamedia Graphics Limited, . (2000). Advanced User's guide to Linux. Chennai: Pentamedia Graphics Limited.
Chicago
Pentamedia Graphics Limited, . 2000. Advanced User's guide to Linux. Chennai: Pentamedia Graphics Limited.
Harvard
Pentamedia Graphics Limited, . (2000). Advanced User's guide to Linux. Chennai: Pentamedia Graphics Limited.
MLA
Pentamedia Graphics Limited, . Advanced User's guide to Linux. Chennai: Pentamedia Graphics Limited. 2000.