TY  - JOUR 
T1  - Lymnaea columella in northern Brazil
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Paraense, W. Lobato
SN  - 0074-0276
UL  - 10.1590/S0074-02761983000400011
VL  - 78 
Y1  - 1983
PB  - Brasil 
ER  -