Ruiz Don Miguel. (1997). Four Agreements. Amber -Allen Publishing.
Chicago-čujuhus (17. p.)Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.
MLA-čujuhus (9. p.)Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.