APA (7e ed.) Bronvermelding
HORTA, B., & ET AL. (1997). LOW BIRTHWEIGHT, PRETERM BIRTHS AND INTRAUTERINE GROWTH RETARDATION IN RELATION TO MATERNAL SMOKING.
Chicago (17e ed.) Bronvermelding
HORTA, B.L, en ET AL. LOW BIRTHWEIGHT, PRETERM BIRTHS AND INTRAUTERINE GROWTH RETARDATION IN RELATION TO MATERNAL SMOKING. 1997.
MLA (9e ed.) Bronvermelding
HORTA, B.L, en ET AL. LOW BIRTHWEIGHT, PRETERM BIRTHS AND INTRAUTERINE GROWTH RETARDATION IN RELATION TO MATERNAL SMOKING. 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.