APA-čujuhus (7. p.)
Ehring, D. (1997). Causation and persistence: A theory of causation. Oxford University Press.
Chicago-čujuhus (17. p.)
Ehring, Douglas. Causation and Persistence: A Theory of Causation. New York ; Oxford, [England]: Oxford University Press, 1997.
MLA-čujuhus (9. p.)
Ehring, Douglas. Causation and Persistence: A Theory of Causation. Oxford University Press, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.