APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.