Cita APA (7th ed.)

Norbury, C., Griffiths, H., & Nation, K. (2010). Sound before meaning: Word learning in autistic disorders.

Cita Chicago (17th ed.)

Norbury, C., H. Griffiths, i K. Nation. Sound Before Meaning: Word Learning in Autistic Disorders. 2010.

Cita MLA (9th ed.)

Norbury, C., et al. Sound Before Meaning: Word Learning in Autistic Disorders. 2010.