Nicholas Copernicus University. (2000). Logic and Logical Philosophy. Nicholas Copernicus University Press.
Čikaški stil citiranja (17. izdanje)Nicholas Copernicus University. Logic and Logical Philosophy. Torun, Polonia: Nicholas Copernicus University Press, 2000.
MLA način citiranja (8. izdanje)Nicholas Copernicus University. Logic and Logical Philosophy. Nicholas Copernicus University Press, 2000.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.