Lopez, E. H. (2002). Local software piracy rate drops to 61 percent. Manila Bulletin.
芝加哥风格引文Lopez, Edu H. "Local Software Piracy Rate Drops to 61 Percent." Manila Bulletin 2002.
MLA引文Lopez, Edu H. "Local Software Piracy Rate Drops to 61 Percent." Manila Bulletin, 2002.
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