Cita APA (7th ed.)

Polosa, R., & Holgate, S. T. (2007). Asthma: Current Treatments. NetLibrary, Incorporated.

Cita Chicago (17th ed.)

Polosa, Riccardo, i S. T. Holgate. Asthma: Current Treatments. Boulder: NetLibrary, Incorporated, 2007.

Cita MLA (9th ed.)

Polosa, Riccardo, i S. T. Holgate. Asthma: Current Treatments. NetLibrary, Incorporated, 2007.