Gaya APA
Sparks, K, J.
(2006).
Encyclopaedia britanica 2006 book of the year
.
Chicago:
Encyclopaedia Britanica Inc.
Gaya MLA
Sparks, Karen, Jacobs.
"Encyclopaedia britanica 2006 book of the year".
Chicago:
Encyclopaedia Britanica Inc,
2006.
Text.