Cita APA (7a ed.)

Lutfy, R. G. (1967). The histology of The alimentary sysytem of Marisa cornuarietis (Mesogastropoda: Ampullariidae). (s.i.).

Cita Chicago Style (17a ed.)

Lutfy, Ramsis G. The Histology of The Alimentary Sysytem of Marisa Cornuarietis (Mesogastropoda: Ampullariidae). Ann Arbor: (s.i.), 1967.

Cita MLA (9a ed.)

Lutfy, Ramsis G. The Histology of The Alimentary Sysytem of Marisa Cornuarietis (Mesogastropoda: Ampullariidae). (s.i.), 1967.