Herrera León, L., & Martínez Barreiro, L. A. (2009). The multiple pregnancy: Is it really a factor of high obstetric risk?
استشهاد بنمط شيكاغوHerrera León, Lorenzo, و Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.
MLA استشهادHerrera León, Lorenzo, و Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.