APA (7 वां संस्करण) प्रशस्ति पत्र
Roberts, A. D. (2011). The role of metalinguistic awareness in the effective teaching of foreign languages. Peter Lang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Roberts, Anthony David. The Role of Metalinguistic Awareness in the Effective Teaching of Foreign Languages. Oxford ; New York: Peter Lang, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Roberts, Anthony David. The Role of Metalinguistic Awareness in the Effective Teaching of Foreign Languages. Peter Lang, 2011.
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