APA Style
The encyclopedia americana : International edition volume 20. (1996).
America:
Grolier Incorporated.
Chicago Style
The encyclopedia americana : International edition volume 20.
edition volume 20.
America:
Grolier Incorporated,
1996.
.
MLA Style
The encyclopedia americana : International edition volume 20.
edition volume 20.
America:
Grolier Incorporated,
1996.
.
Turabian Style
The encyclopedia americana : International edition volume 20.
America:
Grolier Incorporated,
1996.
.