Penggayaan APA
DUBICKA, Iwonna, O'KEEFFE, Margaret. (2008).
Premium: B2 level workbook with key .
New York:
Pearson.
Chicago Style
DUBICKA, Iwonna, O'KEEFFE, Margaret.
Premium: B2 level workbook with key.
New York:
Pearson,
2008.
Buku.
MLA Style
DUBICKA, Iwonna, O'KEEFFE, Margaret.
Premium: B2 level workbook with key.
New York:
Pearson,
2008.
Buku.
Turabian Style
DUBICKA, Iwonna, O'KEEFFE, Margaret.
Premium: B2 level workbook with key.
New York:
Pearson,
2008.
Buku.