Παραπομπή σε μορφή APA (7η εκδ.)

Nutritional Conference for Feed Manufacturers, 7th, University of Nottingham, 1973n, Lewis, D., & Swan, H. (1974). Nutrition conference for feed manufacturers: 7. Butterworths.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nutritional Conference for Feed Manufacturers, 7th, University of Nottingham, 1973n, Dyfed Lewis, και Henry Swan. Nutrition Conference for Feed Manufacturers: 7. London: Butterworths, 1974.

Παραπομπή σε μορφή MLA (9th εκδ.)

Nutritional Conference for Feed Manufacturers, 7th, University of Nottingham, 1973n, et al. Nutrition Conference for Feed Manufacturers: 7. Butterworths, 1974.