APA
Freeman R. B., Waldfogel J., . (1998). Dunning delinquent dads : the effects of child support enforcement policy on child support receipt by never married women. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Freeman Richard B, Waldfogel Jane, . 1998. Dunning delinquent dads : the effects of child support enforcement policy on child support receipt by never married women. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Freeman R. B., Waldfogel J., . (1998). Dunning delinquent dads : the effects of child support enforcement policy on child support receipt by never married women. Cambridge, Mass: National Bureau of Economic Research.
MLA
Freeman Richard B, Waldfogel Jane, . Dunning delinquent dads : the effects of child support enforcement policy on child support receipt by never married women. Cambridge, Mass: National Bureau of Economic Research. 1998.