Penggayaan APA
TILTON, John E.. (1977).
The future of nonfuel minerals .
Washington, D.C.:
The Brookings Instutite.
Chicago Style
TILTON, John E..
The future of nonfuel minerals.
Washington, D.C.:
The Brookings Instutite,
1977.
Buku.
MLA Style
TILTON, John E..
The future of nonfuel minerals.
Washington, D.C.:
The Brookings Instutite,
1977.
Buku.
Turabian Style
TILTON, John E..
The future of nonfuel minerals.
Washington, D.C.:
The Brookings Instutite,
1977.
Buku.