Gaya APA

Nancy, B., R., B, J. (1954). Does Geographical Aggregation Cause Overestimates of the Returns to Schooling? . Washington: The World Bank.

Gaya MLA

Nancy, Birdsall., R., Behrman, Jere. "Does Geographical Aggregation Cause Overestimates of the Returns to Schooling?". Washington: The World Bank, 1954. Teksbook.