APA Style
The Encyclopedia Americana International Edition Volume 20. (1988).
America:
Grolier Incorporated.
Chicago Style
The Encyclopedia Americana International Edition Volume 20.
.
America:
Grolier Incorporated,
1988.
Buku.
MLA Style
The Encyclopedia Americana International Edition Volume 20.
.
America:
Grolier Incorporated,
1988.
Buku.
Turabian Style
The Encyclopedia Americana International Edition Volume 20.
America:
Grolier Incorporated,
1988.
Buku.