Cita APA (7a ed.)

ebrary, Inc, & Hallberg, A. C. (2011). Tonsillar disorders: Etiology, diagnosis and treatment. Nova Science.

Cita Chicago Style (17a ed.)

ebrary, Inc, y Anne C. Hallberg. Tonsillar Disorders: Etiology, Diagnosis and Treatment. Hauppauge, N.Y.: Nova Science, 2011.

Cita MLA (9a ed.)

ebrary, Inc, y Anne C. Hallberg. Tonsillar Disorders: Etiology, Diagnosis and Treatment. Nova Science, 2011.