Spolsky, B. (1989). Conditions for second language learning: Introduction to general theory. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpolsky, Bernard. Conditions for Second Language Learning: Introduction to General Theory. Oxford: Oxford University Press, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSpolsky, Bernard. Conditions for Second Language Learning: Introduction to General Theory. Oxford University Press, 1989.
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