APA

Pfaffenberger (Bryan), . (2001). Linux Command: Instant Reference. : .

Chicago

Pfaffenberger (Bryan), . 2001. Linux Command: Instant Reference. : .

Harvard

Pfaffenberger (Bryan), . (2001). Linux Command: Instant Reference. : .

MLA

Pfaffenberger (Bryan), . Linux Command: Instant Reference. : . 2001.