Lipiec, S. (2021). The Recognition of Professional Qualifications in the European Union The Practice of Administration and European Courts – The Ski Instructor Example. Center for Europe, Warsaw University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLipiec, Stanisław. The Recognition of Professional Qualifications in the European Union The Practice of Administration and European Courts – The Ski Instructor Example. Center for Europe, Warsaw University, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLipiec, Stanisław. The Recognition of Professional Qualifications in the European Union The Practice of Administration and European Courts – The Ski Instructor Example. Center for Europe, Warsaw University, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.