Katzer, J., Cook, K. H., & Crouch, W. W. (1998). Evaluating information: A guide for users of social science research (4th edition.). WCB/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Katzer, Jeffrey, Kenneth H. Cook, agus Wayne W. Crouch. Evaluating Information: A Guide for Users of Social Science Research. 4th edition. Boston, Massachusetts: WCB/McGraw-Hill, 1998.
Lua MLA (9ú heag.)Katzer, Jeffrey, et al. Evaluating Information: A Guide for Users of Social Science Research. 4th edition. WCB/McGraw-Hill, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.