[1]
Silva, P.C.C., de Jesus, F.N., Alves, A.C., de Jesus, C.A.S. and dos Santos, A.R. 2013. Crescimento de plantas de girassol cultivadas em ambiente contaminado por chumbo= Growth of sunflower plants cultivated in lead contaminated environment. Bioscience Journal. 29, (Nov. 2013), 1576–1586.