APA citiranje

Roman, E. A., Alberman, E., & Pharoah, P. O. (1980). Pregnancy order and fetal loss.

Citação norma Chicago

Roman, E A., E. Alberman, and P O. Pharoah. Pregnancy Order and Fetal Loss. 1980.

MLA citiranje

Roman, E A., E. Alberman, and P O. Pharoah. Pregnancy Order and Fetal Loss. 1980.