APA-čujuhus (7. p.)
Spinoza, B. d. (2001). On the improvement of the understanding. Project Gutenberg.
Chicago-čujuhus (17. p.)
Spinoza, Benedictus de. On the Improvement of the Understanding. Champaign, IL: Project Gutenberg, 2001.
MLA-čujuhus (9. p.)
Spinoza, Benedictus de. On the Improvement of the Understanding. Project Gutenberg, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.