[1]
Marçal, W.S. et al. 2004. Levels of lead and cadmium in mineral supplements for cattle commercialized in Londrina. Semina: Ciências Agrárias. 25, 4 (May 2004), 359–364. DOI:https://doi.org/10.5433/1679-0359.2004v25n4p359.