Moraes, J. de D. et al. 2007. CRITICAL COMPETITION PERIOD BETWEEN COTTON AND (Gossypium hirsutum L.) HARMFUL WEED COMMUNITIES IN THE GOIÁS STATE. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]. 13, 1 (Nov. 2007), 39–51. DOI:https://doi.org/10.5216/pat.v13i1.2425.