TY  - SER
AU  - Guimaraes,M.P.
AU  - Costa,H.M.de A.
AU  - Lima,W.dos S.
AU  - Leite,A.C.R.
TI  - The effect of different types of pasture on helminthic infection of cows and calves
KW  - BOVINO
KW  - HELMINTO
KW  - VERMINOSE
ER  -