Hughes, M. (1986). Children and number: Difficulties in learning mathematics. Oxford [Oxfordshire], UK ; New York, NY, USA: B. Blackwell.
استشهاد بنمط شيكاغوHughes, Martin. Children and Number: Difficulties in Learning Mathematics. Oxford [Oxfordshire], UK ; New York, NY, USA: B. Blackwell, 1986.
MLA استشهادHughes, Martin. Children and Number: Difficulties in Learning Mathematics. Oxford [Oxfordshire], UK ; New York, NY, USA: B. Blackwell, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.