Merkoša sitáhtat

APA-čujuhus (7. p.)
Hopkins, C. D. (1980). Understanding educational research: An inquiry approach. Merrill.
Chicago-čujuhus (17. p.)
Hopkins, Charles D. Understanding Educational Research: An Inquiry Approach. Columbus, Ohio: Merrill, 1980.
MLA-čujuhus (9. p.)
Hopkins, Charles D. Understanding Educational Research: An Inquiry Approach. Merrill, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.