Ross, R. (1974). Research: An introduction. Barnes & Noble books.
Chicago-čujuhus (17. p.)Ross, Robert. Research: An Introduction. New York: Barnes & Noble books, 1974.
MLA-čujuhus (9. p.)Ross, Robert. Research: An Introduction. Barnes & Noble books, 1974.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.