Cita APA (7th ed.)

ebrary, Inc, & Clarke, A. (2010). ABC of spinal disorders. Blackwell.

Cita Chicago (17th ed.)

ebrary, Inc, i Andrew Clarke. ABC of Spinal Disorders. Chichester, West Sussex, UK ; Hoboken, NJ: Blackwell, 2010.

Cita MLA (9th ed.)

ebrary, Inc, i Andrew Clarke. ABC of Spinal Disorders. Blackwell, 2010.