Johnson, J. (1978). Doing field research. Free press.
Chicago-čujuhus (17. p.)Johnson, John. Doing Field Research. New York: Free press, 1978.
MLA-čujuhus (9. p.)Johnson, John. Doing Field Research. Free press, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.