Gray england. (2013). Dog breeding, whelping and puppy care. WILEY-BLACKWELL.
Chicago Edition CitationGray england. Dog Breeding, Whelping and Puppy Care. UK: WILEY-BLACKWELL, 2013.
Cita MLAGray england. Dog Breeding, Whelping and Puppy Care. WILEY-BLACKWELL, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.