Penggayaan APA
LANGAN, John. (2012).
English skills (10th ed.).
New York:
McGraw-Hill.
Chicago Style
LANGAN, John.
English skills .
10th ed.
New York:
McGraw-Hill,
2012.
Buku.
MLA Style
LANGAN, John.
English skills .
10th ed.
New York:
McGraw-Hill,
2012.
Buku.
Turabian Style
LANGAN, John.
English skills .
10th ed.
New York:
McGraw-Hill,
2012.
Buku.