Barnet, S., & Bedau, H. A. (1999). Current issues and enduring questions: A guide to critical thinking and argument, with readings (5th ed.). Bedford/St. Martin's.
Dyfyniad Arddull ChicagoBarnet, Sylvan, and Hugo Adam Bedau. Current Issues and Enduring Questions: A Guide to Critical Thinking and Argument, with Readings. 5th ed. Boston: Bedford/St. Martin's, 1999.
Dyfyniad MLABarnet, Sylvan, and Hugo Adam Bedau. Current Issues and Enduring Questions: A Guide to Critical Thinking and Argument, with Readings. 5th ed. Bedford/St. Martin's, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.