Penggayaan APA
BUTTON, K.J.. (1982).
Transport economics .
London:
Heinemann.
Chicago Style
BUTTON, K.J..
Transport economics.
London:
Heinemann,
1982.
Buku.
MLA Style
BUTTON, K.J..
Transport economics.
London:
Heinemann,
1982.
Buku.
Turabian Style
BUTTON, K.J..
Transport economics.
London:
Heinemann,
1982.
Buku.