Blair, R. (2007). Nutrition and feeding of organic pigs. CABI North American Office.
Cita Chicago (17th ed.)Blair, Robert. Nutrition and Feeding of Organic Pigs. Cambridge, MA: CABI North American Office, 2007.
Cita MLA (9th ed.)Blair, Robert. Nutrition and Feeding of Organic Pigs. CABI North American Office, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.