Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (8th εκδ.)

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.