Simon, J. L. (1978). Basic research methods in social science. Random House..
Chicago-čujuhus (17. p.)Simon, Julian L. Basic Research Methods in Social Science. New York: Random House., 1978.
MLA-čujuhus (9. p.)Simon, Julian L. Basic Research Methods in Social Science. Random House., 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.