Nicholas Copernicus University. (2000). Logic and Logical Philosophy. Nicholas Copernicus University Press.
Citação do estilo Chicago (17ª ed.)Nicholas Copernicus University. Logic and Logical Philosophy. Torun, Polonia: Nicholas Copernicus University Press, 2000.
Citação MLA (8ª ed.)Nicholas Copernicus University. Logic and Logical Philosophy. Nicholas Copernicus University Press, 2000.
Opozorilo: Ti citati niso vedno 100% točni.