GRAVELLS, A. (2014). The award in education and training. Sage Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGRAVELLS, Ann. The Award in Education and Training. Sage Publications, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGRAVELLS, Ann. The Award in Education and Training. Sage Publications, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.