Gaya APA
O'Neil, Robert. (1982).
Kernel two : student's book .
London:
Longman.
Gaya Chicago
O'Neil, Robert.
Kernel two : student's book.
London:
Longman,
1982.
Text.
Gaya MLA
O'Neil, Robert.
Kernel two : student's book.
London:
Longman,
1982.
Text.
Gaya Turabian
O'Neil, Robert.
Kernel two : student's book.
London:
Longman,
1982.
Print.