00568pamaa2200181 4500 0000007202 20111110090000.0 053419284X 160 SMI BF441 SMI 1998 SMITH Critical thinking : building the basics Donald E.P. Smith, Glenn M. Knudsvig, Timothy L. Walter. California: Wadsworth Pub., 1998. ix, 85p.: 23cm. Critical thinking Critical thinking -- Problems, exercises, etc Knudsvig, Glenn M. Walter, Timothy L.