Kaleck, M. (1969). Studies in the Theory of Business Cycles 1933-1939. Polish scientific publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKaleck, Michal. Studies in the Theory of Business Cycles 1933-1939. Poland: Polish scientific publishers, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKaleck, Michal. Studies in the Theory of Business Cycles 1933-1939. Polish scientific publishers, 1969.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.