ebrary, Inc, & Hewitt, R. (2012). John Galt: Observations and conjectures on literature, history, and society. Bucknell University Press.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, agus Regina Hewitt. John Galt: Observations and Conjectures on Literature, History, and Society. Lewisburg [Pa.]: Bucknell University Press, 2012.
Lua MLA (9ú heag.)ebrary, Inc, agus Regina Hewitt. John Galt: Observations and Conjectures on Literature, History, and Society. Bucknell University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.