APA

Norton (Peter) ;Hahn (Harley), . (1996). Peter Nortons Guide To Unix. : .

Chicago

Norton (Peter) ;Hahn (Harley), . 1996. Peter Nortons Guide To Unix. : .

Harvard

Norton (Peter) ;Hahn (Harley), . (1996). Peter Nortons Guide To Unix. : .

MLA

Norton (Peter) ;Hahn (Harley), . Peter Nortons Guide To Unix. : . 1996.