Gaya APA
O'Neill, Robert. (1978).
American Kernell Lessons: AKL: Intermediate Students Book .
New York:
.
Gaya Chicago
O'Neill, Robert.
American Kernell Lessons: AKL: Intermediate Students Book.
New York:
,
1978.
Buku.
Gaya MLA
O'Neill, Robert.
American Kernell Lessons: AKL: Intermediate Students Book.
New York:
,
1978.
Buku.
Gaya Turabian
O'Neill, Robert.
American Kernell Lessons: AKL: Intermediate Students Book.
New York:
,
1978.
Buku.