Cita APA (7a ed.)

U, A., I, E., J, P., & AA, E. (2012). Pneumonia immunization in older adults: Review of vaccine effectiveness and strategies. Dove Medical Press.

Cita Chicago Style (17a ed.)

U, Assaad, El-Masri I, Porhomayon J, y El-Solh AA. Pneumonia Immunization in Older Adults: Review of Vaccine Effectiveness and Strategies. Dove Medical Press, 2012.

Cita MLA (8a ed.)

U, Assaad, et al. Pneumonia Immunization in Older Adults: Review of Vaccine Effectiveness and Strategies. Dove Medical Press, 2012.