Moulton, F. R. 1. e. (1937). The world and man as science sees them. Literary Guild of America.
Lua i Stíl Chicago (17ú heag.)Moulton, Forest Ray 1872- ed. The World and Man as Science Sees Them. Garden City, N.Y: Literary Guild of America, 1937.
Lua MLA (9ú heag.)Moulton, Forest Ray 1872- ed. The World and Man as Science Sees Them. Literary Guild of America, 1937.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.