Cita APA (7a ed.)
Behrman, J. R., & Todd, P. E. (1999). A preliminary evaluation of the sample sizes used for the evaluation of the Education, Health, and Nutrition Program (PROGRESA) of Mexico. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Behrman, Jere R., y Petra E. Todd. A Preliminary Evaluation of the Sample Sizes Used for the Evaluation of the Education, Health, and Nutrition Program (PROGRESA) of Mexico. International Food Policy Research Institute, 1999.
Cita MLA (9a ed.)
Behrman, Jere R., y Petra E. Todd. A Preliminary Evaluation of the Sample Sizes Used for the Evaluation of the Education, Health, and Nutrition Program (PROGRESA) of Mexico. International Food Policy Research Institute, 1999.
Precaución: Estas citas no son 100% exactas.