Naus, M., & Scheifele, D. W. (2003). Canada needs a national immunization program: An open letter to the Honourable Anne McLellan, federal minister of health.
استشهاد بنمط شيكاغوNaus, Monika, و David W. Scheifele. Canada Needs a National Immunization Program: An Open Letter to the Honourable Anne McLellan, Federal Minister of Health. 2003.
MLA استشهادNaus, Monika, و David W. Scheifele. Canada Needs a National Immunization Program: An Open Letter to the Honourable Anne McLellan, Federal Minister of Health. 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.