Gershwin, M. E., & Klingelhofer, E. L. (2001). Asthma: Stop Suffering, Start Living. Cambridge, Mass. : Perseus Pub..
Cita Chicago (17th ed.)Gershwin, M. Eric, i E. L. Klingelhofer. Asthma: Stop Suffering, Start Living. Cambridge, Mass. : Perseus Pub., 2001.
Cita MLA (9th ed.)Gershwin, M. Eric, i E. L. Klingelhofer. Asthma: Stop Suffering, Start Living. Cambridge, Mass. : Perseus Pub., 2001.
Atenció: Aquestes cites poden no estar 100% correctes.