Franchini, A. & Ottaviani, E. (1993). Histochemical and ultrastructural study of the digestive gland of the freshwater snail Planorbarius corneus (L.) (Gastropoda - Pulmonata). Animal Biology. 2(3): 191-198.
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Franchini, A. & Ottaviani, E.
1993
Histochemical and ultrastructural study of the digestive gland of the freshwater snail <i>Planorbarius corneus</i> (L.) (Gastropoda - Pulmonata)
