Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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