Yih, W. K., Lieu, T. A., Rêgo, V. H., O'Brien, M. A., Shay, D. K., Yokoe, D. S., & Platt, R. (2003). Attitudes of healthcare workers in U.S. hospitals regarding smallpox vaccination. BioMed Central.
استشهاد بنمط شيكاغوYih, W Katherine, Tracy A. Lieu, Virginia H. Rêgo, Megan A. O'Brien, David K. Shay, Deborah S. Yokoe, و Richard Platt. Attitudes of Healthcare Workers in U.S. Hospitals Regarding Smallpox Vaccination. BioMed Central, 2003.
MLA استشهادYih, W Katherine, et al. Attitudes of Healthcare Workers in U.S. Hospitals Regarding Smallpox Vaccination. BioMed Central, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.