Collins, J. (2011). Great by choice. Random House Book.
Chicago-čujuhus (17. p.)Collins, Jim. Great by Choice. London: Random House Book, 2011.
MLA-čujuhus (9. p.)Collins, Jim. Great by Choice. Random House Book, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.