Ballard, M. (1970). New movements in the study and teaching of history. Indiana University Press.
Lua i Stíl Chicago (17ú heag.)Ballard, Martin. New Movements in the Study and Teaching of History. Bloomington: Indiana University Press, 1970.
Lua MLA (9ú heag.)Ballard, Martin. New Movements in the Study and Teaching of History. Indiana University Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.