Installing EntityFrameWork using NuGet Package Manager

Install
Launch NuGet Package Manager. Goto File>>Open from Feed. This will show the packages available for install. Choose EntityFrameWork or using the search box search for EntityFrameWork. Click OK to download and install.

Export
Create a package folder under your VS2010 project and export the library there. Goto File>>Export

Reference EntityFrameWork library in Visual Studio 2010

using System.Data.Entity;