Guerra- Lopez, I. J. (2008). Performance Evaluation. Jossey Bass.
Chicago-čujuhus (17. p.)Guerra- Lopez, Ingrid J. Performance Evaluation. Jossey Bass, 2008.
MLA-čujuhus (9. p.)Guerra- Lopez, Ingrid J. Performance Evaluation. Jossey Bass, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.