Britannica Concise Encyclopedia
Encyclopedia Britannica, Inc.
Encyclopedia Britannica
978-1593392932
2115 pagini
An: 2007
The New York Times Practical Guide to Practically Everything: The Essential Companion for Everyday Life
Encyclopedia Britannica, Inc.
Amy D. Bernstein, Peter W. Bernstein
978-0312353889
848 pagini
An: 2006