Sanford, W. W. (2018). The Role of the Impractical. University of Ife Press.
Chicago-čujuhus (17. p.)Sanford, William W. The Role of the Impractical. University of Ife Press, 2018.
MLA-čujuhus (9. p.)Sanford, William W. The Role of the Impractical. University of Ife Press, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.