Mayer, C. (2013). Firm Commitment. Oxford University Press.
Chicago-čujuhus (17. p.)Mayer, Colin. Firm Commitment. New Delhi: Oxford University Press, 2013.
MLA-čujuhus (9. p.)Mayer, Colin. Firm Commitment. Oxford University Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.