Bravo Chacón, J. (1981). Contamination by waste from the Cañas riverbed.
シカゴスタイル引用形Bravo Chacón, Juan. Contamination By Waste From the Cañas Riverbed. 1981.
MLA引用形式Bravo Chacón, Juan. Contamination By Waste From the Cañas Riverbed. 1981.
警告: この引用は必ずしも正確ではありません.