APA Style

Clarke, Paul, Sobell, Mark G.. (). A Practical guide to the UNIX System . : .

Chicago Style

Clarke, Paul, Sobell, Mark G.. A Practical guide to the UNIX System. : , . .

MLA Style

Clarke, Paul, Sobell, Mark G.. A Practical guide to the UNIX System. : , . .

Turabian Style

Clarke, Paul, Sobell, Mark G.. A Practical guide to the UNIX System. : , . .