Não informado. (2002). Report of the Breeding and Production Organisation. Milk Marketing Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Breeding and Production Organisation. Thames Ditton, Inglaterra: Milk Marketing Board, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Breeding and Production Organisation. Milk Marketing Board, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.