APA Citation

Thompsom, F. G. Four species of land snails from Costa Rica and Panama (Pulmonata: Sipiraxidae).

Chicago Style Citation

Thompsom, Fred G. Four Species of Land Snails From Costa Rica and Panama (Pulmonata: Sipiraxidae).

MLA Citation

Thompsom, Fred G. Four Species of Land Snails From Costa Rica and Panama (Pulmonata: Sipiraxidae).

Warning: These citations may not always be 100% accurate.