Fernando, I. V. Philex seeks extension of mining operations permit. IN Business News. Manila Bulletin.
芝加哥风格引文Fernando, Irene V. "Philex Seeks Extension of Mining Operations Permit. IN Business News." Manila Bulletin .
MLA引文Fernando, Irene V. "Philex Seeks Extension of Mining Operations Permit. IN Business News." Manila Bulletin, .
警告：这些引文格式不一定是100％准确.