Hedström, I., & Sahlén, G. (2001). A key to the adult Costa Rican “helicopter” damselflies (Odonata: Pseudostigmatidae) with notes on their phenology and life zone preferences.
استشهاد بنمط شيكاغوHedström, Ingemar, و Göran Sahlén. A Key to the Adult Costa Rican “helicopter” Damselflies (Odonata: Pseudostigmatidae) With Notes On Their Phenology and Life Zone Preferences. 2001.
MLA استشهادHedström, Ingemar, و Göran Sahlén. A Key to the Adult Costa Rican “helicopter” Damselflies (Odonata: Pseudostigmatidae) With Notes On Their Phenology and Life Zone Preferences. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.