Cita APA (7a ed.)

Ingvarsson, L. (1982). Acute otitis media in children: Studies on epidemiology, diagnosis and treatment. [s.n.].

Cita Chicago Style (17a ed.)

Ingvarsson, Leif. Acute Otitis Media in Children: Studies on Epidemiology, Diagnosis and Treatment. Malmö: [s.n.], 1982.

Cita MLA (8a ed.)

Ingvarsson, Leif. Acute Otitis Media in Children: Studies on Epidemiology, Diagnosis and Treatment. [s.n.], 1982.