TY  - JOUR 
T1  - Weed Vegetation Structure in an Area of Organic Acerola Cultivation, Parnaíba, Piauí, Brazil
JO  - Planta Daninha
A1  - SOUSA, P.H.S.
A1  - MENDES, M.R.A.
A1  - VAL, A.D.B.
A1  - TEIXEIRA, M.C.S.A.
SN  - 0100-8358
UL  - 10.1590/S0100-83582020380100019
VL  - 38 
Y1  - 2020
PB  - Brasil 
ER  -