APA Citatie

Herrera León, L., & Martínez Barreiro, L. A. (2009). The multiple pregnancy: Is it really a factor of high obstetric risk?

Chicago Style citaat

Herrera León, Lorenzo, en Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.

MLA citatie

Herrera León, Lorenzo, en Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.

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