Rees, R., & Barr, G. (1984). Diagnosis and prescription in the classroom: Some common maths problems. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Rees, Ruth, agus George Barr. Diagnosis and Prescription in the Classroom: Some Common Maths Problems. London: Harper & Row, 1984.
Lua MLA (8ú heag.)Rees, Ruth, agus George Barr. Diagnosis and Prescription in the Classroom: Some Common Maths Problems. Harper & Row, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.