APA aipamena

Levine, P. B., & Zimmerman, D. J. (2000). Children's welfare exposure and subsequent development. National Bureau of Economic Research.

Chicago Style aipamena

Levine, Phillip B., and David J. Zimmerman. Children's Welfare Exposure and Subsequent Development. Cambridge: National Bureau of Economic Research, 2000.

MLA aipamena

Levine, Phillip B., and David J. Zimmerman. Children's Welfare Exposure and Subsequent Development. National Bureau of Economic Research, 2000.