Vaughan, C. (2011). Change in dense forest habitat for endangered wildlife species in Costa Rica from 1940 to 1977.
استشهاد بنمط شيكاغوVaughan, Christopher. Change in Dense Forest Habitat for Endangered Wildlife Species in Costa Rica From 1940 to 1977. 2011.
MLA استشهادVaughan, Christopher. Change in Dense Forest Habitat for Endangered Wildlife Species in Costa Rica From 1940 to 1977. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.