Principles of Economics - Grant
ISBN (Digital): 978-1-4533-3017-3
The Chicago Manual of Style (17th Edition)
Rittenberg, Libby and Timothy Tregarthen. Principles of Economics. 1.0.6. FlatWorld, 2011.
MLA Format (9th Edition)
Rittenberg, Libby, et. al. Principles of Economics. 1.0.6, FlatWorld, 2011.
APA Format (7th Edition)
Rittenberg, L. and Tregarthen, T. (2011). Principles of Economics. (1.0.6). FlatWorld.