Hughes, H. S. (1954). Teachers of history: Essays in honor of Laurence Bradford Packard. Published for Amherst College by Cornell University Press.
Lua i Stíl Chicago (17ú heag.)Hughes, H. Stuart. Teachers of History: Essays in Honor of Laurence Bradford Packard. Ithaca: Published for Amherst College by Cornell University Press, 1954.
Lua MLA (9ú heag.)Hughes, H. Stuart. Teachers of History: Essays in Honor of Laurence Bradford Packard. Published for Amherst College by Cornell University Press, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.