Sandoval Vargas, L. A., & Barrantes Montero, G. (2009). Relationship between Species Richness of Excavator Birds and Cavity–adopters in Seven Tropical Forests in Costa Rica.
استشهاد بنمط شيكاغوSandoval Vargas, Luis Andrés, و Gilbert Barrantes Montero. Relationship between Species Richness of Excavator Birds and Cavity–adopters in Seven Tropical Forests in Costa Rica. 2009.
MLA استشهادSandoval Vargas, Luis Andrés, و Gilbert Barrantes Montero. Relationship between Species Richness of Excavator Birds and Cavity–adopters in Seven Tropical Forests in Costa Rica. 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.