Soares, V.E. et al. 2001. In vitro analysis of the action of acaricides on Boophilus microplus strains (Canestrini, 1887) taken from dairy cattle from northeast area of the São Paulo State. Semina: Ciências Agrárias. 22, 1 (Aug. 2001), 85–90. DOI:https://doi.org/10.5433/1679-0359.2001v22n1p85.