Dyfyniad APA

(1999). Hormones cause skin changes during pregnancy. Manila Bulletin.

Dyfyniad Arddull Chicago

"Hormones Cause Skin Changes During Pregnancy." Manila Bulletin 1999.

Dyfyniad MLA

"Hormones Cause Skin Changes During Pregnancy." Manila Bulletin, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.