Choices & Change: Microeconomics, Lesson 14, Part 1, Environmental & Global Issues: Part 1
directed by Ken Harrison, fl. 1969-1999; produced by Ken Harrison, fl. 1969-1999, Dallas TeleLearning, in Choices & Change: Microeconomics, Lesson 14, Part 1 (Dallas, TX: Dallas County Community College District, 2000), 1 min
