Cita APA (7th ed.)
Davis, J. E., Fernlund, P. M., & Woll, P. (2009). Civics and economics. Pearson.
Cita Chicago (17th ed.)
Davis, James E., Phyllis Maxey Fernlund, i Peter Woll. Civics and Economics. New Jersy: Pearson, 2009.
Cita MLA (9th ed.)
Davis, James E., et al. Civics and Economics. Pearson, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.