Gaya APA
O'Neill, Robert. (1977).
Kernel Lessons Intermediate : Student's Boook .
London:
Longman.
Gaya Chicago
O'Neill, Robert.
Kernel Lessons Intermediate : Student's Boook.
London:
Longman,
1977.
Buku.
Gaya MLA
O'Neill, Robert.
Kernel Lessons Intermediate : Student's Boook.
London:
Longman,
1977.
Buku.
Gaya Turabian
O'Neill, Robert.
Kernel Lessons Intermediate : Student's Boook.
London:
Longman,
1977.
Buku.