Goldin, C., & Katz, L. F. (1997). Why the United States led in education: Lessons from secondary school expansion, 1910 to 1940. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Goldin, Claudia, agus Lawrence F. Katz. Why the United States Led in Education: Lessons from Secondary School Expansion, 1910 to 1940. Cambridge: National Bureau of Economic Research, 1997.
Lua MLA (9ú heag.)Goldin, Claudia, agus Lawrence F. Katz. Why the United States Led in Education: Lessons from Secondary School Expansion, 1910 to 1940. National Bureau of Economic Research, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.