APA (7 वां संस्करण) प्रशस्ति पत्र

Bird, R. (2009). Overcoming difficulties with number: Supporting dyscalculia and students who struggle with maths. SAGE.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Bird, Ronit. Overcoming Difficulties with Number: Supporting Dyscalculia and Students Who Struggle with Maths. London: SAGE, 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Bird, Ronit. Overcoming Difficulties with Number: Supporting Dyscalculia and Students Who Struggle with Maths. SAGE, 2009.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.