Bringing textbook prices back down to earth
ISBN (Digital):
Rittenberg, Libby and Timothy Tregarthen. Principles of Economics. 1.0.1. FlatWorld, 2009.
Rittenberg, Libby, et. al. Principles of Economics. 1.0.1, FlatWorld, 2009.
Rittenberg, L. and Tregarthen, T. (2009). Principles of Economics. (1.0.1). FlatWorld.