Popper, K. (2002). Conjectures and Refutations: the growth of: Scientific knowledge. Routladge.
Chicago-čujuhus (17. p.)Popper, Karl. Conjectures and Refutations: The Growth of: Scientific Knowledge. London: Routladge, 2002.
MLA-čujuhus (9. p.)Popper, Karl. Conjectures and Refutations: The Growth of: Scientific Knowledge. Routladge, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.