APA (7e ed.) Bronvermelding

H. W. Hitzeroth. (1993). The prevention of neural tube defects by folic acid supplementation. AOSIS.

Chicago (17e ed.) Bronvermelding

H. W. Hitzeroth. The Prevention of Neural Tube Defects by Folic Acid Supplementation. AOSIS, 1993.

MLA (9e ed.) Bronvermelding

H. W. Hitzeroth. The Prevention of Neural Tube Defects by Folic Acid Supplementation. AOSIS, 1993.

Let op: Deze citaties zijn niet altijd 100% accuraat.