Cita APA (7a ed.)
Hoffman, S. D., & Seidman, L. S. (2003). Helping working families: The earned income tax credit. W.E. Upjohn Institute for Employment Research.
Cita Chicago Style (17a ed.)
Hoffman, Saul D., y Laurence S. Seidman. Helping Working Families: The Earned Income Tax Credit. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
Cita MLA (9a ed.)
Hoffman, Saul D., y Laurence S. Seidman. Helping Working Families: The Earned Income Tax Credit. W.E. Upjohn Institute for Employment Research, 2003.
Precaución: Estas citas no son 100% exactas.