Strong, R. P. (1904). The clinical and pathological significance of Balantidium coli. Bureau of Public Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStrong, Richard Pearson. The Clinical and Pathological Significance of Balantidium Coli. Manila: Bureau of Public Print, 1904.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStrong, Richard Pearson. The Clinical and Pathological Significance of Balantidium Coli. Bureau of Public Print, 1904.
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