APA Style
Encyclopedia Americana Vol. 21. (2006).
USA:
Scholastic Library Publishing Inc.
Chicago Style
Encyclopedia Americana Vol. 21.
.
USA:
Scholastic Library Publishing Inc,
2006.
.
MLA Style
Encyclopedia Americana Vol. 21.
.
USA:
Scholastic Library Publishing Inc,
2006.
.
Turabian Style
Encyclopedia Americana Vol. 21.
USA:
Scholastic Library Publishing Inc,
2006.
.