CURRENT STATUS OF LEPTOSPIROSIS IMMUNIZATION IN SWINE AND CATTLEHANSON LE; TRIPATHY DN; KILLINGER AH et al.1972; J. AMER. VETER. MED. ASS.; U.S.A.; DA. 1972; VOL. 161; NO 11; PP. 1235-1243; BIBL. 1P.1/2Serial Issue

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