Philippines. National Statistics Office. (2013). 2012 Commodity flow in the Philippines. National Statistics Office.
芝加哥风格引文Philippines. National Statistics Office. 2012 Commodity Flow in the Philippines. Manila: National Statistics Office, 2013.
MLA引文Philippines. National Statistics Office. 2012 Commodity Flow in the Philippines. National Statistics Office, 2013.
警告：这些引文格式不一定是100％准确.