APA-čujuhus (7. p.)

Williams, P. (2010). The fifth principle. Karnac Books.

Chicago-čujuhus (17. p.)

Williams, Paul. The Fifth Principle. London: Karnac Books, 2010.

MLA-čujuhus (9. p.)

Williams, Paul. The Fifth Principle. Karnac Books, 2010.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.