Rogers, A. (2014). The Base of the Iceberg: Informal Learning and Its Impact on Formal and Non-formal Learning. Verlag Barbara Budrich.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRogers, Alan. The Base of the Iceberg: Informal Learning and Its Impact on Formal and Non-formal Learning. Verlag Barbara Budrich, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRogers, Alan. The Base of the Iceberg: Informal Learning and Its Impact on Formal and Non-formal Learning. Verlag Barbara Budrich, 2014.
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