Boisen, H. B. (1882). Preparatory book of German prose. Ginn, Heath, and Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoisen, Hermann B. Preparatory Book of German Prose. Boston: Ginn, Heath, and Company, 1882.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBoisen, Hermann B. Preparatory Book of German Prose. Ginn, Heath, and Company, 1882.
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