Arnold, R. A. (1999). Economics in our times. Chicago, Ill: National Textbook Company.
Trích dẫn kiểu ChicagoArnold, Roger A. Economics in Our Times. Chicago, Ill: National Textbook Company, 1999.
ציטוט MLAArnold, Roger A. Economics in Our Times. Chicago, Ill: National Textbook Company, 1999.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.