Keys to GED Success: Social Studies Steck-Vaughn PaperbackSteck-Vaughn 2008-09-011419053515 Description: Good – No markings on text. Minor wear to covers. mon0000709711 . Family Owned & Operated Oklahoma Bookstore Located on Historic Route 66 Opened in 1989, Online Since 1995 Millions of Books Shipped Worldwide Packages shipped daily, Mon-Fri.0.5500 pounds.