APA (7th ed.) Citation

HELVIG, E., PINHEIRO, K., DRANCA, A., SILVA, A., MENDES, M., & MACIEL, C. Interference Periods of Weeds in Maize in No-Tillage and Conventional Systems at High Altitudes. Sociedade Brasileira da Ciência das Plantas Daninhas.

Chicago Style (17th ed.) Citation

HELVIG, E.O, K.K.G PINHEIRO, A.C DRANCA, A.A.P SILVA, M.C MENDES, and C.D.G MACIEL. Interference Periods of Weeds in Maize in No-Tillage and Conventional Systems at High Altitudes. Sociedade Brasileira da Ciência das Plantas Daninhas.

MLA (9th ed.) Citation

HELVIG, E.O, et al. Interference Periods of Weeds in Maize in No-Tillage and Conventional Systems at High Altitudes. Sociedade Brasileira da Ciência das Plantas Daninhas.