Valencia, C. DA pursues organic farming of upland rice in Bicol. The Philippine Star.
芝加哥风格引文Valencia, Czeriza. "DA Pursues Organic Farming of Upland Rice in Bicol." The Philippine Star .
MLA引文Valencia, Czeriza. "DA Pursues Organic Farming of Upland Rice in Bicol." The Philippine Star, .
警告：这些引文格式不一定是100％准确.