1.
Barron's AP U. S. Government and Politics, 7th Edition
by Lader M.A., Curt
ISBN: 9780764147043
List Price: $16.99
2.
Barron's AP U.S. Government and Politics with CD-ROM, 7th Edition (Barron's AP United States...
by Curt Lader M.A.
ISBN: 9781438071336
List Price: $29.99