Ducusin, L. A. (2001). Mad cow outbreak in Europe boon to RP beef industry. Manila Times.
Chicago-viite (17. p.)Ducusin, Lee Ann. "Mad Cow Outbreak in Europe Boon to RP Beef Industry." Manila Times 2001.
MLA-viite (9. p.)Ducusin, Lee Ann. "Mad Cow Outbreak in Europe Boon to RP Beef Industry." Manila Times, 2001.
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