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Siqueira, N.C.S., Bauer, L., Silva, G.A.A.B., Sant’Ana, B.M.S., Alice, C.B. and Bacha, C.T.M. 1982. Essential oil from Tagetes minuta L. (Compositae), spontaneous in Rio Grande do Sul. Ciência e Natura. 4, 4 (Dec. 1982), 91–94. DOI:https://doi.org/10.5902/2179460X24954.