Greenburg, S. T. (1980). Teaching free enterprise as an enterprise in freedom: A primer for teachers, students, economists, the business community, legislators. San Antonio, Tex: S.T. Greenburg.
Παραπομπή Chicago StyleGreenburg, Sidney Thomas. Teaching Free Enterprise As an Enterprise in Freedom: A Primer for Teachers, Students, Economists, the Business Community, Legislators. San Antonio, Tex: S.T. Greenburg, 1980.
Παραπομπή MLAGreenburg, Sidney Thomas. Teaching Free Enterprise As an Enterprise in Freedom: A Primer for Teachers, Students, Economists, the Business Community, Legislators. San Antonio, Tex: S.T. Greenburg, 1980.
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