APA Style
The Encyclopedia Americana Vol. 18 International Edition. (1973).
USA:
AMERICANA CORPORATION.
Chicago Style
The Encyclopedia Americana Vol. 18 International Edition.
.
USA:
AMERICANA CORPORATION,
1973.
.
MLA Style
The Encyclopedia Americana Vol. 18 International Edition.
.
USA:
AMERICANA CORPORATION,
1973.
.
Turabian Style
The Encyclopedia Americana Vol. 18 International Edition.
USA:
AMERICANA CORPORATION,
1973.
.