Villiers, P. G. R. d. The sixth seal in Revelation 6: 12-17. University of the Free State.
Chicago Style (17th ed.) CitationVilliers, P. G. R. de. The Sixth Seal in Revelation 6: 12-17. University of the Free State.
MLA (9th ed.) CitationVilliers, P. G. R. de. The Sixth Seal in Revelation 6: 12-17. University of the Free State.
Warning: These citations may not always be 100% accurate.