Knudsen, R. B. (1976). New models for creative giving. Association press.
Chicago-čujuhus (17. p.)Knudsen, Raymond B. New Models for Creative Giving. New York: Association press, 1976.
MLA-čujuhus (9. p.)Knudsen, Raymond B. New Models for Creative Giving. Association press, 1976.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.