Ehrhardt, V. P. (2011). Anthem critical thinking and writing skills: An introductory guide. Anthem Press.
Chicago-čujuhus (17. p.)Ehrhardt, Victoria Pontzer. Anthem Critical Thinking and Writing Skills: An Introductory Guide. London ; New York: Anthem Press, 2011.
MLA-čujuhus (9. p.)Ehrhardt, Victoria Pontzer. Anthem Critical Thinking and Writing Skills: An Introductory Guide. Anthem Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.