Choices & Change: Microeconomics, Lesson 1, Part 3, The Study of Choice: Part 3
directed by Ken Harrison, fl. 1969-1999; produced by Ken Harrison, fl. 1969-1999, Dallas TeleLearning, in Choices & Change: Microeconomics, Lesson 1, Part 3 (Dallas, TX: Dallas County Community College District, 2000), 2 mins
