APA Style
Danger underground. (1976).
London:
Macmillan Education Limited.
Chicago Style
Danger underground.
.
London:
Macmillan Education Limited,
1976.
Buku.
MLA Style
Danger underground.
.
London:
Macmillan Education Limited,
1976.
Buku.
Turabian Style
Danger underground.
London:
Macmillan Education Limited,
1976.
Buku.