एपीए उद्धरण

Giraldo-López, A., & Gómez-Schouben, C. (1999). Shell variations of Siphonaria gigas (Sowerby, 1825) in response to the effect of wave intensity. Iniversidad Autónoma de Baja California.

शिकागो स्टाइल उद्धरण

Giraldo-López, A., और C. Gómez-Schouben. Shell Variations of Siphonaria Gigas (Sowerby, 1825) in Response to the Effect of Wave Intensity. Iniversidad Autónoma de Baja California, 1999.

एमएलए उद्धरण

Giraldo-López, A., और C. Gómez-Schouben. Shell Variations of Siphonaria Gigas (Sowerby, 1825) in Response to the Effect of Wave Intensity. Iniversidad Autónoma de Baja California, 1999.