Grady, D. (2008). Hard-to-detect lesions linked to colon cancer, study finds. Manila Bulletin.
Chicago Style (17. basım) AtıfGrady, Denise. "Hard-to-detect Lesions Linked to Colon Cancer, Study Finds." Manila Bulletin 2008.
MLA (9th ed.) AtıfGrady, Denise. "Hard-to-detect Lesions Linked to Colon Cancer, Study Finds." Manila Bulletin, 2008.
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