APA Format
Arnold, John; Scott, Roger. (1988).
Focus :teacher's book /John Arnold & Roger Scott
. : Edward Arnold a division of Hodder & Stoughton,.
MLA Format
Arnold, John; Scott, Roger.
Focus :teacher's book /John Arnold & Roger Scott
. : Edward Arnold a division of Hodder & Stoughton,, 1988
Chicago Format
Arnold, John; Scott, Roger. Focus :teacher's book /John Arnold & Roger Scott. : Edward Arnold a division of Hodder & Stoughton,, 1988.