"Godsbewijzen." . . . . "The fourfold vision; a study of the relations of science and religion" . . "The foufold vision : a study of the relations of science and religion" . . . . . . . . . "The Fourfold vision, a study of the relations of science and religion, by F. Sherwood Taylor" . . "The fourfold vision a study of the relations of science and religion"@en . . . "The fourfold vision : a study of the relations of science and religion"@en . "The fourfold vision : a study of the relations of science and religion" . . . . "Geloof en wetenschap." . . "Materialisme." . . "Since 1900" . . . .