Ballantyne, A. P. (1993). Free enterprise: Our heritage, our wealth. Boulder, CO: Colorado Council on Economic Education.
Chicago-стиль цитированияBallantyne, A. Paul. Free Enterprise: Our Heritage, Our Wealth. Boulder, CO: Colorado Council on Economic Education, 1993.
MLA-цитированиеBallantyne, A. Paul. Free Enterprise: Our Heritage, Our Wealth. Boulder, CO: Colorado Council on Economic Education, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.