APA (7 वां संस्करण) प्रशस्ति पत्र

Hassan, S. (1987). Bioavailability of selenium in feedstuffs as studied in the chick. Dept. of Clinical Nutrition, College of Veterinary Medicine, Swedish University of Agricultural Sciences.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hassan, Saifeldin. Bioavailability of Selenium in Feedstuffs as Studied in the Chick. Uppsala: Dept. of Clinical Nutrition, College of Veterinary Medicine, Swedish University of Agricultural Sciences, 1987.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hassan, Saifeldin. Bioavailability of Selenium in Feedstuffs as Studied in the Chick. Dept. of Clinical Nutrition, College of Veterinary Medicine, Swedish University of Agricultural Sciences, 1987.

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