Penggayaan APA
LEY, Willy. (1971).
The poles .
Nederland:
Time-Life International.
Chicago Style
LEY, Willy.
The poles.
Nederland:
Time-Life International,
1971.
Buku.
MLA Style
LEY, Willy.
The poles.
Nederland:
Time-Life International,
1971.
Buku.
Turabian Style
LEY, Willy.
The poles.
Nederland:
Time-Life International,
1971.
Buku.