Diedrich, S., Claus, H., & Schreier, E. (2002). Immunity status against poliomyelitis in Germany: Determination of cut-off values in International Units. BioMed Central.
استشهاد بنمط شيكاغوDiedrich, Sabine, Hermann Claus, و Eckart Schreier. Immunity Status against Poliomyelitis in Germany: Determination of Cut-off Values in International Units. BioMed Central, 2002.
MLA استشهادDiedrich, Sabine, Hermann Claus, و Eckart Schreier. Immunity Status against Poliomyelitis in Germany: Determination of Cut-off Values in International Units. BioMed Central, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.