Coles, R. (2013). Secular says, sacred moments: The America columns of Robert Coles. Michigan State University Press.
Lua i Stíl Chicago (17ú heag.)Coles, Robert. Secular Says, Sacred Moments: The America Columns of Robert Coles. East Lansing, MI: Michigan State University Press, 2013.
Lua MLA (9ú heag.)Coles, Robert. Secular Says, Sacred Moments: The America Columns of Robert Coles. Michigan State University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.