Παραπομπή APA

Stillwell, J. A. (1975). Workbook: To accompany the fourth edition of an introduction to positive economics. London: Weidenfeld and Nicolson.

Παραπομπή Chicago Style

Stillwell, J. A. Workbook: To Accompany the Fourth Edition of an Introduction to Positive Economics. London: Weidenfeld and Nicolson, 1975.

Παραπομπή MLA

Stillwell, J. A. Workbook: To Accompany the Fourth Edition of an Introduction to Positive Economics. London: Weidenfeld and Nicolson, 1975.

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