Price, H. H. (1969). Belief: The Gifford lectures delivered at the University of Aberdeen in 1960. Allen & Unwin.
Lua i Stíl Chicago (17ú heag.)Price, Henry Habberley. Belief: The Gifford Lectures Delivered at the University of Aberdeen in 1960. London: Allen & Unwin, 1969.
Lua MLA (9ú heag.)Price, Henry Habberley. Belief: The Gifford Lectures Delivered at the University of Aberdeen in 1960. Allen & Unwin, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.