Bullough, W. A. (1974). Cities and schools in the gilded age: The evolution of an urban institution. Kennikat Press.
Lua i Stíl Chicago (17ú heag.)Bullough, William A. Cities and Schools in the Gilded Age: The Evolution of an Urban Institution. Port Washington, N.Y: Kennikat Press, 1974.
Lua MLA (9ú heag.)Bullough, William A. Cities and Schools in the Gilded Age: The Evolution of an Urban Institution. Kennikat Press, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.