Colmenares, P. C. (1997). Operation smile: Changing the misfortune of deformity. Manila Bulletin.
Chicago (17e ed.) BronvermeldingColmenares, Pinky Concha. "Operation Smile: Changing the Misfortune of Deformity." Manila Bulletin 1997.
MLA (9e ed.) BronvermeldingColmenares, Pinky Concha. "Operation Smile: Changing the Misfortune of Deformity." Manila Bulletin, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.