Wolfe. C. S. Lewis’s Perelandra. The Kent State University Press.
Chicago-čujuhus (17. p.)Wolfe. C. S. Lewis’s Perelandra. The Kent State University Press.
MLA-čujuhus (9. p.)Wolfe. C. S. Lewis’s Perelandra. The Kent State University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.