APA citiranje

Bärnighausen, T., Bloom, D. E., Cafiero-Fonseca, E. T., & O’Brien, J. C. (2014). Valuing vaccination. National Academy of Sciences.

Citação norma Chicago

Bärnighausen, Till, David E. Bloom, Elizabeth T. Cafiero-Fonseca, and Jennifer Carroll O’Brien. Valuing Vaccination. National Academy of Sciences, 2014.

MLA citiranje

Bärnighausen, Till, David E. Bloom, Elizabeth T. Cafiero-Fonseca, and Jennifer Carroll O’Brien. Valuing Vaccination. National Academy of Sciences, 2014.