Cita APA (7th ed.)

Hughes, M. 1. M. 1. (1986). Children and number: Difficulties in learning mathematics. B. Blackwell.

Cita Chicago (17th ed.)

Hughes, Martin 1949 May 15-. Children and Number: Difficulties in Learning Mathematics. Oxford [Oxfordshire], UK, New York, NY, USA: B. Blackwell, 1986.

Cita MLA (9th ed.)

Hughes, Martin 1949 May 15-. Children and Number: Difficulties in Learning Mathematics. B. Blackwell, 1986.