TY  - JOUR 
T1  - Observations on the morphology of Pomacea lineata (Spix, 1827) (Mollusca, Ampullariidae)
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Thiengo, Silvana Carvalho
SN  - 0074-0276
UL  - 10.1590/S0074-02761987000400015
VL  - 82 
Y1  - 1987
PB  - Brasil 
ER  -