Kennedy, D., Pastuszak, A., & Koren, G. (1997). Taking folic acid during pregnancy. Don't leave it too late. College of Family Physicians of Canada.
Citação norma ChicagoKennedy, D., A. Pastuszak, and G. Koren. Taking Folic Acid During Pregnancy. Don't Leave It Too Late. College of Family Physicians of Canada, 1997.
Citação norma MLAKennedy, D., A. Pastuszak, and G. Koren. Taking Folic Acid During Pregnancy. Don't Leave It Too Late. College of Family Physicians of Canada, 1997.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.