Παραπομπή σε μορφή APA (7η εκδ.)

Lever, M. (2003). Number: Activities for children with mathematical learning difficulties. D. Fulton.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lever, Mel. Number: Activities for Children with Mathematical Learning Difficulties. London: D. Fulton, 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Lever, Mel. Number: Activities for Children with Mathematical Learning Difficulties. D. Fulton, 2003.