(1963). First and second Gregorio Singian Memorial lecture. Philippine College of Surgeons.
Chicago Style (17th ed.) CitationFirst and Second Gregorio Singian Memorial Lecture. Manila: Philippine College of Surgeons, 1963.
MLA (9th ed.) CitationFirst and Second Gregorio Singian Memorial Lecture. Philippine College of Surgeons, 1963.
Warning: These citations may not always be 100% accurate.