APA
Goldenberg R. L., Iams J. D., Miodovnik M., Van Dorsten J. P., Thurnau G., Bottoms S., Mercer B. M., Meis P. J., Moawad A. H., Das A., Caritis S. N. & McNellis D. (19961205). The preterm prediction study: risk factors in twin gestations. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. : American journal of obstetrics and gynecology.
Chicago
Goldenberg R L, Iams J D, Miodovnik M, Van Dorsten J P, Thurnau G, Bottoms S, Mercer B M, Meis P J, Moawad A H, Das A, Caritis S N and McNellis D. 19961205. The preterm prediction study: risk factors in twin gestations. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. : American journal of obstetrics and gynecology.
Harvard
Goldenberg R. L., Iams J. D., Miodovnik M., Van Dorsten J. P., Thurnau G., Bottoms S., Mercer B. M., Meis P. J., Moawad A. H., Das A., Caritis S. N. and McNellis D. (19961205). The preterm prediction study: risk factors in twin gestations. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. : American journal of obstetrics and gynecology.
MLA
Goldenberg R L, Iams J D, Miodovnik M, Van Dorsten J P, Thurnau G, Bottoms S, Mercer B M, Meis P J, Moawad A H, Das A, Caritis S N and McNellis D. The preterm prediction study: risk factors in twin gestations. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. : American journal of obstetrics and gynecology. 19961205.