(1981). Evaluation research and practice:comparative: And international perspectives. Sage.
Chicago-čujuhus (17. p.)Evaluation Research and Practice:comparative: And International Perspectives. Beverly Hills, Calif: Sage, 1981.
MLA-čujuhus (9. p.)Evaluation Research and Practice:comparative: And International Perspectives. Sage, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.