Royal College of Speech & Language Therapists. (1999). International Journal of Language & Communication Disorders. Taylor & Francis.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoyal College of Speech & Language Therapists. International Journal of Language & Communication Disorders. London: Taylor & Francis, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoyal College of Speech & Language Therapists. International Journal of Language & Communication Disorders. Taylor & Francis, 1999.
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