Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Lever, Mel. Number: Activities for Learning with Mathematical Learning Difficulties. London: David Fulton Publishers, 2003.

Cita MLA (9th ed.)

Lever, Mel. Number: Activities for Learning with Mathematical Learning Difficulties. David Fulton Publishers, 2003.