Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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