(1997). The Philippine College of Chest Physicians at 25: A retrospect. Manila Chronicle.
Chicago Style (17. basım) Atıf"The Philippine College of Chest Physicians at 25: A Retrospect." Manila Chronicle 1997.
MLA (9th ed.) Atıf"The Philippine College of Chest Physicians at 25: A Retrospect." Manila Chronicle, 1997.
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