Bragg, W. H. (1925). Concerning the nature of things: Six lectures delivered at the Royal Institution. G. Bell.
Lua i Stíl Chicago (17ú heag.)Bragg, William Henry. Concerning the Nature of Things: Six Lectures Delivered at the Royal Institution. London: G. Bell, 1925.
Lua MLA (8ú heag.)Bragg, William Henry. Concerning the Nature of Things: Six Lectures Delivered at the Royal Institution. G. Bell, 1925.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.