Howard, S. E., & Osborn, F. J. 1. (1965). Garden cities of to-morrow (3rd ed.). M. I. T Press.
Lua i Stíl Chicago (17ú heag.)Howard, Sir Ebenezer, agus Frederic James 1885 Osborn. Garden Cities of To-morrow. 3rd ed. Cambridge, Mass: M. I. T Press, 1965.
Lua MLA (9ú heag.)Howard, Sir Ebenezer, agus Frederic James 1885 Osborn. Garden Cities of To-morrow. 3rd ed. M. I. T Press, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.