Penggayaan APA
BILLINGS, Henry. (1966).
All down the valley .
Washington:
Washington square press.
Chicago Style
BILLINGS, Henry.
All down the valley.
Washington:
Washington square press,
1966.
Buku.
MLA Style
BILLINGS, Henry.
All down the valley.
Washington:
Washington square press,
1966.
Buku.
Turabian Style
BILLINGS, Henry.
All down the valley.
Washington:
Washington square press,
1966.
Buku.