If you want to read books on Mahabharata then you can get it from Exotic India. They deliver the books to your doorstep.

The four Vedas are Rig, Yajur, Sama and Atharva. Each is divided into four parts viz. The Samhita, Aranyaka, Brahmins and Upanishads and Khilanas are considered as extensions of the Vedas.