Weitere, M. (2001). The heterotrophic nanoflagellates in the water column of the River Rhine: Seasonal and spatial dynamics and their position in the food web. Universität zu Köln.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Weitere, Markus. The Heterotrophic Nanoflagellates in the Water Column of the River Rhine: Seasonal and Spatial Dynamics and Their Position in the Food Web. Germany: Universität zu Köln, 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Weitere, Markus. The Heterotrophic Nanoflagellates in the Water Column of the River Rhine: Seasonal and Spatial Dynamics and Their Position in the Food Web. Universität zu Köln, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.