Schroeder, S. (2015). Mathematics and Forms of Life. Nordic Wittgenstein Society.
Chicago-čujuhus (17. p.)Schroeder, Severin. Mathematics and Forms of Life. Nordic Wittgenstein Society, 2015.
MLA-čujuhus (9. p.)Schroeder, Severin. Mathematics and Forms of Life. Nordic Wittgenstein Society, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.