Cita APA

G. Thompson, F. (2010). Four species of land snails from Costa Rica and Panama (Pulmonata: Spiraxidae). Universidad de Costa Rica.

Citación estilo Chicago

G. Thompson, Fred. Four Species of Land Snails From Costa Rica and Panama (Pulmonata: Spiraxidae). Universidad de Costa Rica, 2010.

Cita MLA

G. Thompson, Fred. Four Species of Land Snails From Costa Rica and Panama (Pulmonata: Spiraxidae). Universidad de Costa Rica, 2010.