Veterinary medicine : a textbook of the diseases of cattle, sheep, pigs, goats and horses ; Blood, D. C. ; Gay, C.C. ; Radostits, O.M. - 8th ed. - London Bailliere Tindall 1995 - xxiii,1763p. 30 cm. PR ISBN: 0702017949 Dewey Class. No.: 636.089 / V