(1999). Hormones cause skin changes during pregnancy. Manila Bulletin.
Chicago (17e ed.) Bronvermelding"Hormones Cause Skin Changes During Pregnancy." Manila Bulletin 1999.
MLA (9e ed.) Bronvermelding"Hormones Cause Skin Changes During Pregnancy." Manila Bulletin, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.