Segura, M., Castillo, Á., Alvarado, A., & Blanco, F. (2005). Nutrient extraction by Alnus acuminata plantations at the Virilla river watershed, Costa Rica.
استشهاد بنمط شيكاغوSegura, Manuel, Álvaro Castillo, Alfredo Alvarado, و Fabio Blanco. Nutrient Extraction By Alnus Acuminata Plantations At the Virilla River Watershed, Costa Rica. 2005.
MLA استشهادSegura, Manuel, Álvaro Castillo, Alfredo Alvarado, و Fabio Blanco. Nutrient Extraction By Alnus Acuminata Plantations At the Virilla River Watershed, Costa Rica. 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.