GUELL, R. C. (2021). Issues in economics today. McGraw-Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUELL, Robert C. Issues in Economics Today. McGraw-Hill Education, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUELL, Robert C. Issues in Economics Today. McGraw-Hill Education, 2021.
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