APA (7e ed.) Bronvermelding
Hoffman, S. D., & Seidman, L. S. (2003). Helping working families: The earned income tax credit. W.E. Upjohn Institute for Employment Research.
Chicago (17e ed.) Bronvermelding
Hoffman, Saul D., en Laurence S. Seidman. Helping Working Families: The Earned Income Tax Credit. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
MLA (9e ed.) Bronvermelding
Hoffman, Saul D., en Laurence S. Seidman. Helping Working Families: The Earned Income Tax Credit. W.E. Upjohn Institute for Employment Research, 2003.
Let op: Deze citaties zijn niet altijd 100% accuraat.