Chinchilla, M., Mata, R., & Alvarado, A. (2010). Characterization and classification of Ultisols of Los Santos, Talamanca, Costa Rica.
शिकागो स्टाइल उद्धरणChinchilla, Miguel, Rafael Mata, और Alfredo Alvarado. Characterization and Classification of Ultisols of Los Santos, Talamanca, Costa Rica. 2010.
एमएलए उद्धरणChinchilla, Miguel, Rafael Mata, और Alfredo Alvarado. Characterization and Classification of Ultisols of Los Santos, Talamanca, Costa Rica. 2010.
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