Kummerow, J., & Hirsh, S. (1989). Lifetypes. Warner Books.
Chicago-čujuhus (17. p.)Kummerow, Jean, juo Sandra Hirsh. Lifetypes. New York, NY: Warner Books, 1989.
MLA-čujuhus (9. p.)Kummerow, Jean, juo Sandra Hirsh. Lifetypes. Warner Books, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.