APA (7 वां संस्करण) प्रशस्ति पत्र

Não informado. (1950). Tohoku journal of agricultural research. Tohoku University, Faculty of Agriculture.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Não informado. Tohoku Journal of Agricultural Research. Sendai, Japão: Tohoku University, Faculty of Agriculture, 1950.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Não informado. Tohoku Journal of Agricultural Research. Tohoku University, Faculty of Agriculture, 1950.

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