Joyce, M., & Neumark, D. (2000). An introduction to school-to-work programs in the NLSY 97: How prevalent are they, and which youths do they serven. National Bureau of Economic Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Joyce, Mary, και David Neumark. An Introduction to School-to-work Programs in the NLSY 97: How Prevalent Are They, and Which Youths Do They Serven. Cambridge: National Bureau of Economic Research, 2000.
Παραπομπή σε μορφή MLA (9th εκδ.)Joyce, Mary, και David Neumark. An Introduction to School-to-work Programs in the NLSY 97: How Prevalent Are They, and Which Youths Do They Serven. National Bureau of Economic Research, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.