Παραπομπή APA

Harvey, J. (1988). Modern economics an introduction for business and professional students. English language Book society.

Παραπομπή Chicago Style

Harvey, J. Modern Economics an Introduction for Business and Professional Students. Macmillan: English language Book society, 1988.

Παραπομπή MLA

Harvey, J. Modern Economics an Introduction for Business and Professional Students. English language Book society, 1988.